# Nationality Mismatch Restart Booking - IMPLEMENTED

## Changes Made

### File: `edr-passenger-web/portal/src/app/booking/passengers/page.tsx`

**Changes:**
1. Added `clearBooking` to the imported hooks from `useBookingStore`
2. Updated the "Restart Booking" button click handler to:
   - Clear the entire booking state using `clearBooking()`
   - Perform a full page reload to `/booking/search` using `window.location.href`
   - Added visual feedback with `ExternalLink` icon

**Before:**
```typescript
onClick={() => router.push('/booking/search')}
```

**After:**
```typescript
onClick={() => {
  clearBooking();
  window.location.href = '/booking/search';
}}
className="btn-primary w-full flex items-center justify-center gap-2"
>
  <ExternalLink className="w-5 h-5" />
  Restart Booking
</button>
```

## Behavior

When user encounters a nationality mismatch error:
1. Warning card displays with ⚠️ icon
2. User clicks "Restart Booking" button
3. Button action triggers:
   - **State Clearing**: All booking data is cleared from Zustand store and localStorage:
     - `searchCriteria`
     - `selectedSchedule`
     - `passengers`
     - `seatHold`
     - `bookingId`
     - `pnr`
     - `selectedPaymentMethod`
     - `createAccount`
     - `passengerId`
   - **Full Page Reload**: Browser navigates to `/booking/search` with full page reload (not client-side navigation)
   - **Visual Feedback**: ExternalLink icon indicates external/full navigation action

## Benefits

✅ **Complete State Reset**: Ensures all booking data is cleared, preventing stale data issues
✅ **Fresh Start**: Full page reload ensures clean state on search page
✅ **Clear UX**: ExternalLink icon visually indicates a reload action
✅ **No Residual Data**: Prevents any leftover booking information from previous attempt
✅ **Consistent User Flow**: Forces fresh search criteria entry

## Technical Details

- Uses `useBookingStore().clearBooking()` from Zustand store
- `window.location.href` triggers full page reload (unlike `router.push()` which is client-side navigation)
- All booking state is reset to initial values defined in store
- localStorage is automatically cleared due to Zustand's persist middleware

## Testing Checklist

- [ ] Login with account that has nationality A
- [ ] Search for passenger with nationality B
- [ ] Verify nationality mismatch error appears
- [ ] Click "Restart Booking" button
- [ ] Verify page reloads to search page
- [ ] Verify booking store is completely cleared
- [ ] Verify search page shows default/empty state
- [ ] Verify user can perform new search