generate response: I take the first one at 17:59. May I have the price and train ID?. Intent: find_train. Slots: train-day=sunday, train-departure=cambridge, train-destination=london liverpool street, train-leaveat=16:00
Response: Sure, the train id for the 17:59 departure is TR7713 and the price is 13.28 pounds. Would you like me to book you a ticket?