generate response: I'm departing from london liverpool street and would like to leave after 16:15. Does this help?. Intent: find_train. Slots: train-day=wednesday, train-departure=london liverpool street, train-destination=cambridge, train-leaveat=16:15
Response: The TR2232 train is available. It departs wednesday at 17:39 from london liverpool to Cambridge. Would you like me to book you a ticket?