i need to get to london kings cross . can you help me find a train ? the train should arrive by 15:45 and should leave on friday from cambridge .
i have 70 trains matching your request . is there a specific day and time when you would like to travel ?
{'service': 'train', 'act': 'inform', 'slot_name': 'choice', 'value': '5'} {'service': 'train', 'act': 'inform', 'slot_name': 'leave', 'value': '5:00'} {'service': 'train', 'act': 'request', 'slot_name': 'leave', 'value': '?'}
there are 5 trains . would you like to leave at 5:00 ?