generate response: I don't need to book right now. Could you just give me the train ID. I'll need one that leaves after 14:30 Tuesday.. Intent: find_train. Slots: train-day=tuesday, train-departure=broxbourne, train-destination=cambridge, train-leaveat=14:30
Response: The first available train on Tuesday leaves at 14:32. The train id is TR9417. Is there anything else I can help you with?