generate response: I need the train to leave Cambridge on Monday after 10:30 and go to Stansted Airport, and I need two tickets. I also need my reference number please.. Intent: book_train. Slots: train-bookpeople=2, train-day=monday, train-departure=cambridge, train-destination=stansted airport, train-leaveat=10:30
Response: There are 14 trains leaving Monday from cambridge to stansted airport after 10:30. The closest departure to that would be TR8207 leaving at 10:40. Shall I book this for 2?