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: 'i need to find an expensive restaurant and it should be in the addenbrookes area'
System: 'What type of food would you like? For example, pub, English, or Fastfood.'
User: 'pub english'
System: 'There is no restaurant in the Addenbrooke's area and serving english food.'
User: 'i need to find an expensive restaurant in the addenbrookes area'
System: 'Would you like an english food, or you don't care?'
User: 'i dont care'
System: 'The Lucky Star, which is in the Addenbrooke's part of town, is an outstanding restaurant. It's in the expensive price range.'
User: 'uh what is the address of that venue'
System: 'The Lucky Star is located on Unit.'
User: 'thank you good bye'

Output (English): Expensive