generate response: I don't need a ticket, I just need to know the price and travel time, please.. Intent: find_train. Slots: train-arriveby=17:45, train-day=wednesday, train-departure=cambridge, train-destination=ely, train-leaveat=15:50
Response: That train will leave at 15.50 and arrive at 16:07. the cost is 4.40 pounds.