i am looking for a train . i am looking to go to london kings cross and depart from cambridge .
i would be happy to help you with that . can you tell me your departure location and where you are headed to ?
{'service': 'train', 'act': 'inform', 'slot_name': 'choice', 'value': '70'} {'service': 'train', 'act': 'request', 'slot_name': 'leave', 'value': '?'} {'service': 'train', 'act': 'request', 'slot_name': 'day', 'value': '?'}
there are 70 trains making that trip , do you have a day or time ?