hey i am looking for a train from cambridge to bishops stortford . mind helping out ?
{'service': 'train', 'act': 'inform', 'slot_name': 'choice', 'value': 'many'} {'service': 'train', 'act': 'inform', 'slot_name': 'day', 'value': 'friday'} {'service': 'train', 'act': 'request', 'slot_name': 'leave', 'value': '?'}
many trains are leaving on friday . mind choosing the time ?