generate response: Well, I just want to leave after 9:15.. Intent: find_train. Slots: train-day=wednesday, train-departure=cambridge, train-destination=ely, train-leaveat=9:15, 09:15
Response: Alright, there are 8 options. The earliest train after 09:15 leaves at 09:50 and the latest at 23:50, each takes 17 minutes. Do you have a preference?