generate response: I would like to leave after 17:00. Intent: find_train. Slots: train-day=tuesday, train-departure=cambridge, train-destination=peterborough, train-leaveat=17:00
Response: Oh, I'm sorry, you said that earlier. The TR9395 leaves cambridge at 17:06 and arrives in Peterborough at 17:56. Would you like me to book you on it?