i need help finding a train . can you help ? cambridge and should go to stevenage . at arrive at 9:15 , please
yes i can help you find a train what station are you going to and from and at what time would you like to leave ?
{'service': 'train', 'act': 'request', 'slot_name': 'day', 'value': '?'}
great i just need day of week that you are planning on leaving ?