generate response: I would like to arrive in Broxbourne by 09:15 from Cambridge. I will need a departure time too, please.. Intent: find_train. Slots: train-arriveby=09:15, train-day=saturday, train-departure=cambridge, train-destination=broxbourne
Response: TR7807 will leave Cambridge at 8:01 and arrive in Broxbourne at 9:01. If that works for you, I can go ahead and get you a ticket.