public void UpdateBooking(Booking booking)
 {
     BookingRepository.Update(booking);
     SaveBooking();
 }
 public void DeleteBooking(Booking booking)
 {
     BookingRepository.Delete(booking);
     SaveBooking();
 }
 public void CreateBooking(Booking booking)
 {
     BookingRepository.Add(booking);
     SaveBooking();
 }