generate response: The train should depart from Ely and arrive at Cambridge.. Intent: find_train. Slots: train-arriveby=09:15, train-day=tuesday, train-departure=ely, train-destination=cambridge
Response: That narrows it down to 2 options. I have train TR6971 that leaves at 07:35 and will arrive in Cambridge by 07:52. Would that work for you?