generate response: I need to leave on Sunday after 16:00 please.. Intent: find_train. Slots: train-day=sunday, train-departure=cambridge, train-destination=birmingham new street, train-leaveat=16:00
Response: The first train departing Cambridge after 16:00 is the TR2776, leaving 16:01, arriving in Birmingham, New Street at 18:44. Would you like to book a seat on this one?