generate response: Cambridge. Should leave after 15:00. Intent: find_train. Slots: train-day=wednesday, train-departure=ely, train-destination=cambridge, train-leaveat=15:00
Response: There are 5 trains leaving after 15:00. The times are 15:35, 17:35, 19:35, 21:35 and 23:35. Which would you like?