public IHttpActionResult GetUpcomingLandings([FromUri] string key, [FromUri] string value)
        {
            AnonymousUserFacade     facade  = new AnonymousUserFacade();
            IList <FlightWithNames> flights = facade.GetUpcomingLandings(key, value);

            if (flights.Count == 0)
            {
                return(StatusCode(HttpStatusCode.NoContent));
            }
            return(Ok(flights));
        }