diff --git a/hotel-management/src/constants/messages.ts b/hotel-management/src/constants/messages.ts
new file mode 100644
index 0000000..67eb3df
--- /dev/null
+++ b/hotel-management/src/constants/messages.ts
@@ -0,0 +1,5 @@
+const invalidFormatMessage = (field: string) => {
+  return `Invalid ${field} format`;
+};
+
+export { invalidFormatMessage };
diff --git a/hotel-management/src/helpers/utils.ts b/hotel-management/src/helpers/utils.ts
index 767a3d0..b5a3c19 100644
--- a/hotel-management/src/helpers/utils.ts
+++ b/hotel-management/src/helpers/utils.ts
@@ -1,3 +1,4 @@
+import { invalidFormatMessage } from '../constants/messages';
 import { TKeyValue, TPropValues, TStateSchema } from '../globals/types';
 
 const VALUE = 'value';
@@ -27,10 +28,27 @@ const getPropValues = (stateSchema: TStateSchema, prop?: TPropValues) => {
   }, {} as TKeyValue);
 };
 
+type TValidator = {
+  validatorFunc: (value: string) => boolean;
+  prop: string;
+  required?: boolean;
+};
+
+const addValidator = ({ validatorFunc, prop, required = true }: TValidator) => {
+  return {
+    required,
+    validator: {
+      func: validatorFunc,
+      error: invalidFormatMessage(prop),
+    },
+  };
+};
+
 export {
   isObject,
   isRequired,
   getPropValues,
+  addValidator,
   VALUE,
   ERROR,
   REQUIRED_FIELD_ERROR,
diff --git a/hotel-management/src/hooks/useForm.ts b/hotel-management/src/hooks/useForm.ts
index 74be96e..fa5e71c 100644
--- a/hotel-management/src/hooks/useForm.ts
+++ b/hotel-management/src/hooks/useForm.ts
@@ -33,7 +33,6 @@ const useForm = (
 
   // Get a local copy of stateSchema
   useEffect(() => {
-    setDisable(true); // Disable button in initial render.
     setInitialErrorState();
   }, []); // eslint-disable-line
 
@@ -116,8 +115,10 @@ const useForm = (
 
       // Making sure that there's no error in the state
       // before calling the submit callback function
+      // and disabled button
       if (!validateErrorState()) {
         submitFormCallback(values);
+        setDisable(true);
       }
     },
     [validateErrorState, submitFormCallback, values],
diff --git a/hotel-management/src/pages/User/Dialog.tsx b/hotel-management/src/pages/User/Dialog.tsx
new file mode 100644
index 0000000..defe696
--- /dev/null
+++ b/hotel-management/src/pages/User/Dialog.tsx
@@ -0,0 +1,39 @@
+import { forwardRef, useEffect } from 'react';
+
+// Components
+import Dialog from '../../components/Dialog';
+import UserForm from './Form';
+
+// Interfaces
+import { IDialogProps } from '../../globals/interfaces';
+
+const UserDialog = forwardRef((props, ref) => {
+  const dialogRef = ref as React.MutableRefObject<
+    HTMLDialogElement | undefined
+  >;
+  const { onClose } = props;
+
+  useEffect(() => {
+    if (dialogRef.current) {
+      dialogRef.current.addEventListener('click', (e: MouseEvent) => {
+        const dialogDimensions = dialogRef.current!.getBoundingClientRect();
+        if (
+          e.clientX < dialogDimensions.left ||
+          e.clientX > dialogDimensions.right ||
+          e.clientY < dialogDimensions.top ||
+          e.clientY > dialogDimensions.bottom
+        ) {
+          dialogRef.current!.close();
+        }
+      });
+    }
+  }, [dialogRef]);
+
+  return (
+    <Dialog title={'Add user'} onClose={onClose} ref={dialogRef}>
+      <UserForm onClose={onClose!} />
+    </Dialog>
+  );
+}) as React.FC<IDialogProps>;
+
+export default UserDialog;
diff --git a/hotel-management/src/pages/User/Form.tsx b/hotel-management/src/pages/User/Form.tsx
new file mode 100644
index 0000000..01bf120
--- /dev/null
+++ b/hotel-management/src/pages/User/Form.tsx
@@ -0,0 +1,212 @@
+import styled from 'styled-components';
+
+// Styled
+import Input from '../../commons/styles/Input';
+import { useState } from 'react';
+import TextArea from '../../commons/styles/TextArea';
+
+// Components
+import Form from '../../components/Form';
+import FormRow from '../../components/FormRow';
+import Button from '../../commons/styles/Button.ts';
+
+// Types
+import { TKeyValue, TStateSchema, TValidator } from '../../globals/types';
+
+// Hooks
+import useForm from '../../hooks/useForm';
+
+// Utils
+import {
+  isValidAddress,
+  isValidNumber,
+  isValidPhoneNumber,
+  isValidString,
+} from '../../helpers/validators';
+import { addValidator } from '../../helpers/utils.ts';
+
+const FormBtn = styled(Button)`
+  width: 100%;
+
+  &:disabled,
+  &[disabled] {
+    background-color: var(--disabled-btn-color);
+  }
+`;
+
+interface IUserFormProp {
+  onClose: () => void;
+}
+
+const UserForm = ({ onClose }: IUserFormProp) => {
+  const [reset, setReset] = useState(true);
+
+  // Define your state schema
+  const stateSchema: TStateSchema = {
+    fullName: { value: '', error: '' },
+    identifiedCode: { value: '', error: '' },
+    phone: { value: '', error: '' },
+    room: { value: '', error: '' },
+    address: { value: '', error: '' },
+  };
+
+  // prettier-ignore
+  const stateValidatorSchema: TValidator = {
+    fullName: addValidator({ 
+      validatorFunc: isValidString, 
+      prop: 'full name' 
+    }),
+    identifiedCode: addValidator({
+      validatorFunc: isValidNumber,
+      prop: 'identified code',
+    }),
+    phone: addValidator({
+      validatorFunc: isValidPhoneNumber,
+      prop: 'phone number',
+    }),
+    room: addValidator({ 
+      validatorFunc: isValidNumber, 
+      prop: 'room number' 
+    }),
+    address: addValidator({ 
+      validatorFunc: isValidAddress, 
+      prop: 'address' 
+    }),
+  };
+
+  // Submit form
+  const onSubmitForm = (state: TKeyValue) => {
+    alert(JSON.stringify(state, null, 2));
+    onClose();
+    onResetForm();
+  };
+
+  // prettier-ignore
+  const { 
+    values, 
+    errors, 
+    dirty, 
+    handleOnChange, 
+    handleOnSubmit, 
+    disable }  =
+    useForm(
+      stateSchema,
+      stateValidatorSchema,
+      onSubmitForm,
+    );
+
+  // prettier-ignore
+  const { 
+    fullName, 
+    identifiedCode,
+    phone,
+    room, 
+    address 
+  } = values;
+
+  // Reset form
+  const onResetForm = () => {
+    setReset(!reset);
+    Object.keys(values).forEach((key) => (values[key] = ''));
+  };
+
+  return (
+    <Form onSubmit={handleOnSubmit}>
+      <Input type="hidden" id="id" />
+      <FormRow
+        label="Full Name"
+        error={
+          // prettier-ignore
+          errors.fullName && dirty.fullName ? 
+            (errors.fullName as string) 
+            : ''
+        }
+      >
+        <Input
+          type="text"
+          name="fullName"
+          value={fullName as string}
+          onChange={handleOnChange}
+        />
+      </FormRow>
+
+      <FormRow
+        label="Identified Code"
+        error={
+          errors.identifiedCode && dirty.identifiedCode
+            ? (errors.identifiedCode as string)
+            : ''
+        }
+      >
+        <Input
+          type="text"
+          name="identifiedCode"
+          value={identifiedCode as string}
+          onChange={handleOnChange}
+        />
+      </FormRow>
+
+      <FormRow
+        label="Phone"
+        error={
+          // prettier-ignore
+          errors.phone && dirty.phone ? 
+            (errors.phone as string) 
+            : ''
+        }
+      >
+        <Input
+          type="text"
+          name="phone"
+          value={phone as string}
+          onChange={handleOnChange}
+        />
+      </FormRow>
+
+      <FormRow
+        label="Room"
+        error={
+          // prettier-ignore
+          errors.room && dirty.room ? 
+            (errors.room as string) 
+            : ''
+        }
+      >
+        <Input
+          type="text"
+          name="room"
+          value={room as string}
+          onChange={handleOnChange}
+        />
+      </FormRow>
+
+      <FormRow
+        label="Address"
+        error={
+          // prettier-ignore
+          errors.address && dirty.address ? 
+            (errors.address as string) 
+            : ''
+        }
+      >
+        <TextArea
+          name="address"
+          rows={3}
+          value={address as string}
+          onChange={handleOnChange}
+        />
+      </FormRow>
+
+      <Form.Action>
+        <FormBtn type="submit" name="submit" disabled={disable}>
+          Add
+        </FormBtn>
+        <FormBtn type="button" styled="secondary" onClick={onClose}>
+          Close
+        </FormBtn>
+      </Form.Action>
+    </Form>
+  );
+};
+
+export default UserForm;
diff --git a/hotel-management/src/pages/User/UserTable.tsx b/hotel-management/src/pages/User/Table.tsx
similarity index 100%
rename from hotel-management/src/pages/User/UserTable.tsx
rename to hotel-management/src/pages/User/Table.tsx
diff --git a/hotel-management/src/pages/User/index.tsx b/hotel-management/src/pages/User/index.tsx
index d6cda30..8fa2d9a 100644
--- a/hotel-management/src/pages/User/index.tsx
+++ b/hotel-management/src/pages/User/index.tsx
@@ -1,21 +1,38 @@
+import { useRef } from 'react';
+
 // Components
 import Direction from '../../commons/styles/Direction';
 import Button from '../../commons/styles/Button';
-import UserTable from './UserTable';
+import UserTable from './Table';
 
 // Styled
 import { StyledUser, Title } from './styled';
+import UserDialog from './Dialog';
 
 const User = () => {
-  return (
-    <StyledUser>
-      <Direction type="horizontal">
-        <Title>List User</Title>
-        <Button>Add user</Button>
-      </Direction>
+  const dialogRef = useRef<HTMLDialogElement>();
 
-      <UserTable />
-    </StyledUser>
+  const openDialog = () => {
+    dialogRef.current?.showModal();
+  };
+
+  const closeDialog = () => {
+    dialogRef.current?.close();
+  };
+
+  return (
+    <>
+      <StyledUser>
+        <Direction type="horizontal">
+          <Title>List User</Title>
+          <Button onClick={openDialog}>Add user</Button>
+        </Direction>
+
+        <UserTable />
+      </StyledUser>
+
+      <UserDialog onClose={closeDialog} ref={dialogRef} />
+    </>
   );
 };