are there any trains from london kings cross to cambridge ?
{'service': 'train', 'act': 'inform', 'slot_name': 'choice', 'value': 'serveal'} {'service': 'train', 'act': 'inform', 'slot_name': 'depart', 'value': 'london kings cross'} {'service': 'train', 'act': 'inform', 'slot_name': 'dest', 'value': 'cambridge'} {'service': 'train', 'act': 'request', 'slot_name': 'leave', 'value': '?'}
yes there are serveal trains leaving from london kings cross to cambridge what time would you like to leave ?