generate response: Departing time, no, but I'd like to arrive at birmingham new street by 16:45. Intent: find_train. Slots: train-arriveby=16:45, train-day=wednesday, train-destination=birmingham new street
Response: I can get you there at 16:44, if you like. TR8860 will depart cambridge at 14:01. Would you like to book tickets on that train?