i need help finding a train for thursday . i would be leaving from cambridge going o peterborough . i just need to leave after 20:30 .
can you please tell me your departure and destination ? what time would like to leave or arrive ? what time would you like to arrive at your destination ?
{'service': 'train', 'act': 'inform', 'slot_name': 'arrive', 'value': ' 07:56'} {'service': 'train', 'act': 'inform', 'slot_name': 'choice', 'value': 'last train'} {'service': 'train', 'act': 'request', 'slot_name': 'people', 'value': '?'}
how about the last train , it'll get you there at 07:56 . how many tickets please ?