yes , i need a train that is leaving from stansted airport on saturday .
{'service': 'train', 'act': 'inform', 'slot_name': 'id', 'value': 'tr4194'} {'service': 'train', 'act': 'inform', 'slot_name': 'depart', 'value': 'stansted airport'} {'service': 'train', 'act': 'inform', 'slot_name': 'day', 'value': 'saturday'} {'service': 'train', 'act': 'inform', 'slot_name': 'leave', 'value': '05:24'} {'service': 'train', 'act': 'inform', 'slot_name': 'ticket', 'value': '8.08 pounds'} {'service': 'train', 'act': 'inform', 'slot_name': 'arrive', 'value': '05:52'} {'service': 'train', 'act': 'inform', 'slot_name': 'dest', 'value': 'cambridge'} {'service': 'train', 'act': 'inform', 'slot_name': 'time', 'value': '28 minutes'} {'service': 'train', 'act': 'offerbook', 'slot_name': 'none', 'value': 'none'}
tr4194 stansted airport cambridge saturday 05:24 05:52 8.08 pounds 28 minutes . would you like me to book you on this schedule ?