generate response: I need to leave after 17:45 heading for Cambridge. Go ahead and book the closest time and give me the train ID and arrival time.. Intent: find_train. Slots: train-day=friday, train-departure=leicester, train-destination=cambridge, train-leaveat=17:45
Response: The train ID is TR9629, leaving at 18:09 and arriving by 19:54. Can you tell me how many tickets you would like to purchase?