generate response: We will need to depart from Ely and will need to arrive in Cambridge by 08:15. How long will it take to arrive and what will be the departure time?. Intent: find_train. Slots: train-arriveby=08:15, train-day=tuesday, train-departure=ely, train-destination=cambridge
Response: TR6971 Departs at 07:35 and arrives by 07:52. The duration of the ride is 17 minutes. Would you like me to book it for you?