hello , i am looking for information on a train . i am headed to cambridge from the stansted airport . can you find information for thursday please ?
i can help you with that . where are you headed ?
{'service': 'train', 'act': 'inform', 'slot_name': 'choice', 'value': '19'} {'service': 'train', 'act': 'request', 'slot_name': 'leave', 'value': '?'} {'service': 'train', 'act': 'request', 'slot_name': 'depart', 'value': '?'}
i found 19 trains what time do you want to leave the airport ?