generate response: Departing from Cambridge. I need the departure time, train ID and price.. Intent: find_train. Slots: train-arriveby=21:45, train-day=sunday, train-departure=cambridge, train-destination=peterborough
Response: Okay, we've got a few options. The best looks like train TR6958 that leaves Cambridge at 20:34 and arrived in Peterborough at 21:24. The price is 13.2 pounds.