generate response: The latest I can leave to arrive by 16:30 please.. Intent: find_train. Slots: train-day=monday, train-departure=cambridge, train-destination=ely, train-leaveat=16:30
Response: The last train that will arrive by 16:30 is train TR7177. It departs at 15:50 and arrives at 16:07. Would you like me to book a ticket for you?