i need a train leaving from cambridge . i will be traveling to broxbourne on thursday in the afternoon . that sounds good . please book a ticket for 1 person .
i can help you with that . where are you headed ? the tr0071 arrives in broxbourne on thursday at 14:01 . would you like a ticket ?
{'service': 'train', 'act': 'offerbooked', 'slot_name': 'ref', 'value': 'emccex26'}
your train has been booked and its reference number is emccex26 .