Task: Dialogue State Tracking
Input (English): System: 'Thank you for calling the Cambridge Information system. Your call will be recorded for research purposes. You may ask for information about a place to eat, such as a restaurant, a pub, or a cafe. How may I help you?'
User: 'im looking for a northern european restaurant that has a cheap price range'
System: 'Polonia is a great restaurant, it serves northern european food and it's in the cheap price range.'
User: 'i want to know the address and area'
System: 'Polonia is located on 231 Chesterton Road. The price for main courses ranges from 1 pound 50 to 7 pounds 50.'
User: 'thank you good bye'

Output (English): Cheap