public async Task <IHttpActionResult> CheckAvailbilityOfFlight(DateTime startDate, DateTime endDate, int passengerCount)
{
var flightList = await flightManager.CheckAvailbilityOfFlight(startDate, endDate, passengerCount);
if (flightList != null && flightList.Count() > 0)
{
return(Ok(flightList));
}
else
{
return(NotFound());
}
}