generate response: I want to leave sometime after 9:15 from bishops stortford thursday to cambridge, whats the arrival time to the closest train and the ID please. Intent: find_train. Slots: train-day=thursday, train-departure=bishops stortford, train-destination=cambridge, train-leaveat=09:15, 9:15
Response: The earliest train available is TR0798. The arrival time would be 10:07.