yes , i am looking for a train that will be leaving after 13:30 on tuesday . the train should go to cambridge and should depart from london liverpool street .
what is your destination ?
{'service': 'train', 'act': 'inform', 'slot_name': 'arrive', 'value': '15:07'} {'service': 'train', 'act': 'inform', 'slot_name': 'day', 'value': 'tuesday'} {'service': 'train', 'act': 'inform', 'slot_name': 'leave', 'value': '13:39'} {'service': 'train', 'act': 'inform', 'slot_name': 'depart', 'value': 'london liverpool street'} {'service': 'train', 'act': 'inform', 'slot_name': 'dest', 'value': 'cambridge'} {'service': 'train', 'act': 'inform', 'slot_name': 'id', 'value': 'tr1395 '}
tr1395 leaves london liverpool street for cambridge on tuesday at 13:39 and arrives by 15:07 .