i would like a ticket to a train that arrives in cambridge before 8:45am . i would like to depart from london kings cross
there are 231 trains that arrive in cambridge before 8:45 , can you tell me where you want to depart from to narrow it down ?
{'service': 'train', 'act': 'offerbook', 'slot_name': 'arrive', 'value': '8:08'} {'service': 'train', 'act': 'offerbook', 'slot_name': 'dest', 'value': 'cambridge'} {'service': 'train', 'act': 'offerbook', 'slot_name': 'leave', 'value': '07:17 '} {'service': 'train', 'act': 'offerbook', 'slot_name': 'id', 'value': 'tr4543'}
i can book you on train number tr4543 . it departs at 07:17 and arrives in cambridge at 8:08 .