generate response: I would like to leave after 12:30. Intent: find_train. Slots: train-day=monday, train-departure=broxbourne, train-destination=cambridge, train-leaveat=12:30
Response: I have several trains running that day, the earliest I can offer that leaves after 12:30 is TR3108 which leaves at 13:32 and arrives by 14:32, would you like me to book your tickets?