i am interested in booking a train to cambridge for next tuesday . i would like to depart from birmingham new street after 14:45 . yes , that works ! i would like the reference number please .
there are several trains departing for cambridge on tuesday . 1 train departs every hour starting at 06:08 there are 9 trains that depart from birmingham new street to cambridge on tuesday after 14:45 . the earliest is 15:40 , does that work ?
{'service': 'train', 'act': 'request', 'slot_name': 'people', 'value': '?'}
how many tickets do you need ?