generate response: Bishops stortford, it needs to leave after 12:15. Intent: find_train. Slots: train-day=thursday, train-departure=bishops stortford, train-destination=cambridge, train-leaveat=12:15
Response: TrainID TR0141 leaves Bishops Stortford at 13:29 and arrives in Cambridge at 14:07 on Thursday. Does that work for you?