Hi Following query is not working is there any problem with it? var possibleSegments = from epl in eventPotentialLegs join sd in segmentDurations on new { epl.ITARequestID, epl.ITASliceNumber, epl.DepartAirportAfter, epl.AirportId_Origin, epl.AirportId_Destination } equals new { sd.ITARequestId, sd.SliceIndex, sd.OriginAirport, sd.DestinationAirport } where epl.DepartAirportAfter > sd.UTCDepartureTime and epl.ArriveAirportBy > sd.UTCArrivalTime select new PossibleSegments{ ArrivalTime = sd.arrivalTime };