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: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'sil'
System: 'Can I help you with anything else?'
User: 'restaurant'
System: 'Can I help you with anything else?'
User: 'traditional'
System: 'The Eagle, which serves traditional food, is an outstanding restaurant.'
User: 'restaurant'
System: 'The Eagle, which serves traditional food, is an outstanding restaurant.'
User: 'expensive'
System: 'The Granta Bar is an outstanding restaurant, it serves traditional food and it's in the expensive price range.'
User: 'expensive'
System: 'The Granta Bar is a great restaurant. This place, which serves traditional food, is in the expensive price range.'
User: 'the address'
System: 'The Riverside Restaurant is located on University Centre, Granta Place.'
User: 'address'
System: 'The Riverside Restaurant is located on University Centre, Granta Place.'
User: 'area'
System: 'The Granta Bar is a great restaurant.'
User: 'what area'
System: 'The Granta Bar is in the riverside part of town.'
User: 'is it expensive'
System: 'The Riverside Restaurant is in the expensive price range.'
User: 'sil'
System: 'The Granta Bar is an outstanding restaurant.'
User: 'expensive price range'
System: 'The Granta Bar is an outstanding venue. The price for main courses ranges from 14 pounds 95 to 16 pounds 95.'
User: 'address'
System: 'The Riverside Restaurant is located on University Centre, Granta Place.'
User: 'granta bar address'
System: 'The Granta Bar is located on University Centre, Granta Place.'
User: 'thank you goodbye'

Output (English): Expensive