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 kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'expensive'
System: 'Are you looking for somewhere near a particular venue? For example, Churchill College, Magdalene College, or Old Schools.'
User: 'col magdalene college'
System: 'Are you looking for a pub or a restaurant?'
User: 'restaurant'
System: 'What type of food would you like? For example, pub, French, or Greek.'
User: 'french'
System: 'Are you looking for somewhere near a particular venue? For example, Kettle's Yard, the Lynne Strover Gallery, or Trinity College.'
User: 'trinity college'
System: 'What part of town do you have in mind? For example, Addenbrooke's, or Fen Ditton.'
User: 'fen ditton'
System: 'What part of town do you have in mind? For example, something in the central, Fen Ditton, or King's Hedges area.'
User: 'fen ditton'
System: 'Let me confirm. You don't care about the area and you are looking for a venue.'
User: 'yes'
System: 'The Hotel du Vin is an outstanding restaurant. It serves french food. It's in the expensive price range.'
User: 'unintelligible'
System: 'The Hotel du Vin is an outstanding venue. The price for main courses ranges from 17 pounds to 25 pounds.'
User: 'address'
System: 'The Hotel du Vin is on 15-19 Trumpington Street.'
User: 'unintelligible'
System: 'The Hotel du Vin is an outstanding restaurant.'
User: 'unintelligible'
System: 'The Hotel du Vin is an outstanding restaurant.'
User: 'unintelligible'
System: 'The Hotel du Vin is a great restaurant.'
User: 'unintelligible'
System: 'The Hotel du Vin is an outstanding restaurant, it serves french food and it's in the expensive price range.'
User: 'address'
System: 'The Hotel du Vin is located on 15-19 Trumpington Street.'
User: 'thank you goodbye'

Output (English): Expensive