i need to take a train from cambridge to london kings cross tuesday from cambridge to london kings cross , anytime after 15:45 .
i can help you with that ! what day would like to travel and what time would you like to depart ?
{'service': 'train', 'act': 'inform', 'slot_name': 'id', 'value': 'tr0945'} {'service': 'train', 'act': 'offerbook', 'slot_name': 'none', 'value': 'none'}
train tr0945 fits the bill , would you like me to book you passage ?