generate response: What time does that train leave Cambridge? I also need a place to stay in Ely, with free parking and free wifi?. Intent: book_train. Slots: hotel-internet=yes, hotel-parking=yes, train-arriveby=21:45, train-day=friday, train-departure=cambridge, train-destination=ely
Response: The train leaves ely at 19:50. Would you prefer a guesthouse or hotel?