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: 'east asian restaurant'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'sil'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'sil'
System: 'What kind of price range are you looking for? For example, free, or moderate.'
User: 'sil'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'sil'
System: 'What kind of price range are you looking for? For example, free, or moderate.'
User: 'expensive'
System: 'Are you looking for somewhere near a particular venue? For example, the Ruskin Gallery, Sidney Sussex College, or Trinity College.'
User: 'trinity college'
System: 'Are you looking for somewhere near a particular venue? For example, Byard Art, Clare Hall, or Saint Catharine's College.'
User: 'catharines college'
System: 'Are you looking for somewhere near a particular venue? For example, Cambridge Contemporary Art, Saint Catharine's College, or Trinity College.'
User: 'no'
System: 'Shiraz, which serves east asian food, is an outstanding restaurant. It's in the expensive price range.'
User: 'whats the address'
System: 'Shiraz is located on 84 Regent Street. The price for main courses ranges from 9 pounds to 14 pounds 15.'
User: 'uh whats the phone number'
System: 'The phone number of Shiraz is 01223902104.'
User: 'okay thank you goodbye'

Output (English): Expensive