generate response: I would like to leave after 13:00 and should arrive at birmingham new street. Intent: find_train. Slots: train-day=tuesday, train-departure=cambridge, train-destination=birmingham new street, train-leaveat=after 13:00, 13:15
Response: TR6168 runs from cambridge to birmingham new street that day and leaves at 14:01. Does that work for you?