generate response: I am not sure what time I need to leave but has to be Saturday and depart from cambridge to arrive by 11:45. Intent: find_train. Slots: train-arriveby=11:45, train-day=saturday, train-departure=cambridge, train-destination=peterborough
Response: I can book you for an arrival by 11:24 and leaves at 10:34. Would you like me to book that for you?