generate response: bishops stortford and should leave after 19:15 on sunday and go to cambridge. Intent: find_train. Slots: train-day=sunday, train-departure=bishops stortford, train-destination=cambridge, train-leaveat=19:30, after 19:15
Response: I have two trains on a Sunday matching those demands. One leaves at 21:07 and one leaves at 24:07. Any preference?