i need a train to leave from cambridge after 15:30 . i will be leaving on saturday and going to london liverpool street .
ok , lets get you set up , where are you going and on what day ?
{'service': 'train', 'act': 'inform', 'slot_name': 'arrive', 'value': '17:27'} {'service': 'train', 'act': 'inform', 'slot_name': 'leave', 'value': '15:59'} {'service': 'train', 'act': 'inform', 'slot_name': 'depart', 'value': 'cambridge '} {'service': 'train', 'act': 'inform', 'slot_name': 'dest', 'value': 'london liverpool street '} {'service': 'train', 'act': 'inform', 'slot_name': 'id', 'value': 'tr4859 '}
i would recommend tr4859 which leaves cambridge at 15:59 and arrives at london liverpool street at 17:27 .