private async void LoadSeats()
{
try
{
Seats = new List <Seat>(await FlightRepository.GetAllSeatsAsync());
SeatsWithPassengers = Seats.Where(s => s.Passenger != null);
}
catch (Exception e)
{
MessageDialog messageDialog = new MessageDialog($"Couldn't establish a connection to the database. \n{e.Message}");
messageDialog.Commands.Add(new UICommand("Try again", new UICommandInvokedHandler(this.CommandInvokedHandler)));
messageDialog.Commands.Add(new UICommand("Close"));
messageDialog.DefaultCommandIndex = 0;
messageDialog.CancelCommandIndex = 1;
await messageDialog.ShowAsync();
}
}