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: 'looking for an expensive restaurants'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Barnwell, or Girton area.'
User: 'addenbrookes area'
System: 'The Lucky Star, which is in the Addenbrooke's part of town, is a great restaurant. It's in the expensive price range.'
User: 'address'
System: 'The Lucky Star is on Unit.'
User: 'phone number and post code'
System: 'The phone number of the Lucky Star is 01223244277 and it's in the area with the postcode CB1 7DY.'
User: 'unintelligible'
System: 'There is no restaurant in the Addenbrooke's area and serving fusion food.'
User: 'what is the address'
System: 'The Lucky Star is on Unit.'
User: 'what is the address'
System: 'The Lucky Star is on Unit.'
User: 'thank you goodbye'

Output (English): Expensive