i am looking for a train that departs from peterborough and goes to cambridge .
{'service': 'train', 'act': 'inform', 'slot_name': 'choice', 'value': 'many'} {'service': 'train', 'act': 'request', 'slot_name': 'day', 'value': '?'}
i have many trains available . what day would you like to leave ?