generate response: I don't need to book right now. You've told me the departure time. I just need the travel time and the ticket price.. Intent: find_train. Slots: train-arriveby=19:15, train-day=friday, train-departure=cambridge, train-destination=peterborough, train-leaveat=18:06
Response: Okay! It's a 50-minute train ride, and it costs 16.50 Pounds. Can I help you with anything else?