generate response: I will take the 5:21. Can you please give me the travel time, train ID, and price?. Intent: find_train. Slots: train-arriveby=08:15, train-day=friday, train-departure=cambridge, train-destination=stevenage
Response: The travel time of the 5:21 is 49 minutes, arriving at 6:10. Train ID is TR2515 and the price is 12.80 pounds. How many tickets?