public IHttpActionResult GetFlightNameByFilter(long orgCoun = 0, long destCoun = 0, long airline = 0, long flightNum = 0)
        {
            IList <Flight> flightsByFilter = anonymous.GetFlightsByFilter(orgCoun, destCoun, airline, flightNum);

            if (flightsByFilter.Count == 0)
            {
                Console.WriteLine("No flights were found to match the search terms");
                return(NotFound());
            }
            return(Ok(flightsByFilter));
        }