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 price range are you looking for? For example, free, or moderate.'
User: 'expensive'
System: 'Can I help you with anything else?'
User: 'expensive'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'expensive'
System: 'Can I help you with anything else?'
User: 'expensive'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'noise sil'
System: 'What kind of venue are you looking for? For example, a pub.'
User: 'restaurant'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Fen Ditton, or Newnham area.'
User: 'romsey'
System: 'Are you looking for somewhere near a particular venue? For example, Saint John's College, Sidney Sussex College, or Williams Art and Antiques.'
User: 'noise sil'
System: 'What part of town do you have in mind? For example, something in the Arbury, Newnham, or riverside area.'
User: 'romsey'
System: 'Can I help you with anything else?'
User: 'expensive restaruan in the romsey area'
System: 'The Backstreet Bistro is a great restaurant, it's in the Romsey part of town and it's in the expensive price range.'
User: 'what is the address'
System: 'The Backstreet Bistro is located on 2 Sturton Street.'
User: 'what is the phone number'
System: 'The phone number of the Backstreet Bistro is 01223306306.'
User: 'what is the price'
System: 'The Backstreet Bistro is a great venue. The price for main courses ranges from 10 pounds 95 to 14 pounds 25.'
User: 'thank you good bye'

Output (English): Expensive