I am creating a Spring boot application for booking flights. I have a home page, where flight details are displayed in a table using thymeleaf as below:

<table border="solid">
    <tr>
        <th>Airline</th>
        <th>Flight Number</th>
        <th>Departure</th>
        <th>Arrival</th>
        <th>Date</th>
        <th>Seats available</th>
        <th>Price</th>
                
    </tr>
            
    <tr th:each="flight : ${flightList}">
        <td th:text="${flight.airlineName}"></td>
        <td th:text="${flight.flightNumber}" th:field="*{flightNumber}"></td>
            <td th:text="${flight.departure}"></td>
            <td th:text="${flight.arrival}"></td>
        <td th:text="${flight.date}"></td>
        <td th:text="${flight.availableSeats}"></td>
        <td th:text="${flight.price}"></td>
                
        </tr>
            
</table>

Below is the controller:

@Controller
@RequestMapping("/booking")
public class BookingController {
    
    @Autowired
    private FlightService flightService;

    @GetMapping("/booking-page")
    public String getBookingPage(@RequestParam("flightNumber") String flightNumber) {
        flightService.findFlightByFlightNumber(flightNumber);
        return "bookFlight";
    }
}

I am trying to fetch the specific flight using the flight number (when the specific row is clicked) and pass it as parameter to the controller in order to display it on the next page.
It is not working though. Any alternative?