public async Task <IActionResult> Get(string flightId, DateTime flightDate) { if (String.IsNullOrWhiteSpace(flightId)) { return(NotFound("flightDate Is Null Or WhiteSpace!")); } if (flightDate == null) { return(NotFound("flightDate is null!")); } var tickets = await _ticketSrvice.GetNotSoldSByFlightIdAndDateAsync(flightId, flightDate); if (tickets == null || tickets.Count() == 0) { return(NotFound()); } return(Ok(tickets)); }