i am looking for a train leaving on friday going to cambridge . i just want to arrive by 15:15 .
i can help with that . where will you be departing from ?
{'service': 'train', 'act': 'inform', 'slot_name': 'arrive', 'value': '15:15'} {'service': 'train', 'act': 'inform', 'slot_name': 'day', 'value': 'friday'} {'service': 'train', 'act': 'inform', 'slot_name': 'choice', 'value': '101'} {'service': 'train', 'act': 'request', 'slot_name': 'depart', 'value': '?'}
well , there are 101 trains arriving before 15:15 on friday . is there are area you are coming from so i can narrow it down for you ?