generate response: Yes, that sounds perfect. Can you tell me the price and travel time, or duration, on that one?. Intent: find_train. Slots: train-day=saturday, train-departure=cambridge, train-destination=stansted airport, train-leaveat=15:45
Response: Actually that one is sold out however TR2001 leaves at 16:40 as well. Travel time is 28 min and price is 8.08 pounds.