private void LoadData(string bookingid)
 {
     booking     = facade.GetBooking(bookingid);
     reservation = facade.GetReservation(booking.ReservationID);
     contract    = facade.GetCustomer(booking.ContractID);
     InitializeWindowContent();
 }
 public CheckOutWindow(string bookingid)
 {
     booking = facade.GetBooking(bookingid);
     room    = facade.GetRoom(booking.RoomID);
     InitializeComponent();
     InitializeWindowContent();
 }