i need a train to leave cambridge and arrive by 19:00 my destination is going to be stansted airport i should leave on thursday .
sure , what is your destination ? what day will you be traveling ?
{'service': 'train', 'act': 'inform', 'slot_name': 'arrive', 'value': '18:08'} {'service': 'train', 'act': 'inform', 'slot_name': 'leave', 'value': '17:40'}
okay , the 17:40 train arriving at 18:08 will get you to the airport a little early .