generate response: I am looking for a train that departs from Cambridge. I am traveling to Stevenage and I need to arrive by 13:30.. Intent: find_train. Slots: train-arriveby=13:30, train-day=tuesday, train-departure=cambridge, train-destination=stevenage
Response: TR4546 departs at 09:21 and arrives at 10:10. Can I book that train for you?