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: 'restaurant'
System: 'What type of food would you like? For example, Fusion, Italian, or Vegetarian.'
User: 'italian'
System: 'Are you looking for somewhere near a particular venue? For example, Churchill College, Corpus Christi, or Old Schools.'
User: 'addenbrookes'
System: 'What kind of price range are you looking for? For example, expensive.'
User: 'expensive'
System: 'Are you looking for somewhere near a particular venue? For example, Byard Art, Cafe Jello, or the People's Portraits Exhibition.'
User: 'addenbrookes area'
System: 'The Sorrento, which is in the Addenbrooke's part of town, is an outstanding restaurant. It serves italian food.'
User: 'phone number'
System: 'The phone number of The Sorrento is 01223243533.'
User: 'postcode of the venue'
System: 'The Sorrento is in the area with the postcode CB1 7AN.'
User: 'address'
System: 'The Sorrento is located on 196 Cherry Hinton Road.'
User: 'thank you good bye'

Output (English): Expensive