public bool DeleteFlightPrice(string departure, string arrival)
 {
     if (_paymentClient.isPayed(_serviceId, _company))
     {
         var adapter = new FLIGHTSPRICETableAdapter();
         adapter.DeleteFlightPrice(Convert.ToInt32(adapter.GetFlightsPriceId(departure, arrival)));
         return(true);
     }
     return(false);
 }
 public bool AddFlightPrice(string departure, string arrival, int price)
 {
     if (_paymentClient.isPayed(_serviceId, _company))
     {
         var adapter     = new FLIGHTSPRICETableAdapter();
         var cityAdapter = new CITIESTableAdapter();
         adapter.InsertFlightPrice(Convert.ToInt32(adapter.GetNumberFlightPrice()) + 1,
                                   Convert.ToInt32(cityAdapter.GetCityId(departure)), Convert.ToInt32(cityAdapter.GetCityId(arrival)),
                                   price);
         return(true);
     }
     return(false);
 }