generate response: I am departing from Stevenage. I need to book seats for 8 people to Cambridge on a Saturday to arrive by 21:00.. Intent: book_train. Slots: train-arriveby=21:00, train-bookpeople=8, train-day=saturday, train-departure=stevenage, train-destination=cambridge
Response: I have several trains that will arrive in Cambridge by 21:00 what time of day would you prefer to depart?