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: 'noise sil'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'breathing sil'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'noise mexican texmex restaurant'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'mexican'
System: 'Chiquito is an outstanding restaurant and it serves mexican and tex mex food.'
User: 'breathing mexican restaurant'
System: 'What kind of price range are you looking for? For example, expensive, or moderate.'
User: 'texmex'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Chesterton, or Girton area.'
User: 'expensive'
System: 'Chiquito, which serves mexican and tex mex food, is a great restaurant. It's in the expensive price range.'
User: 'chesterton'
System: 'There is no restaurant in the Chesterton area in the expensive price range.'
User: 'thank you and good bye'

Output (English): Expensive