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 pub, or a restaurant.'
User: 'sil'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'restaurant in castle hill'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'restaurant in castle hill'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'expensive'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'expensive'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, Chesterton, or Trumpington area.'
User: 'cheap'
System: 'Would you like a venue with a cheap or expensive price range?'
User: 'castle hill'
System: 'Would you like a venue with a cheap or expensive price range?'
User: 'cheap'
System: 'What part of town do you have in mind? For example, something in the Barnwell, New Chesterton, or Trumpington area.'
User: 'cheap'
System: 'Are you looking for somewhere near a particular venue? For example, Gonville and Caius College, the Lynne Strover Gallery, or Wandlebury Country Park.'
User: 'new chester'
System: 'Are you looking for a venue in the Chesterton or New Chesterton area?'
User: 'country park'
System: 'Are you looking for a venue in the Chesterton or New Chesterton area?'
User: 'castle hill'
System: 'Are you looking for a venue in the Chesterton or New Chesterton area?'
User: 'castle hill'
System: 'Are you looking for a venue in the Chesterton or New Chesterton area?'
User: 'no'
System: 'Are you looking for a venue in the Chesterton or New Chesterton area?'
User: 'chesterton'
System: 'There is no restaurant in the Chesterton area in the cheap price range.'
User: 'chesterton'
System: 'There is no restaurant in the Chesterton area in the cheap price range.'
User: 'sil'
System: 'Would you like a cheap price range, or you don't care?'
User: 'new chesterton'
System: 'Would you like a cheap price range, or you don't care?'
User: 'dont care'
System: 'Would you like a cheap price range, or you don't care?'
User: 'dont care'
System: 'Twenty-four, which is in the Chesterton part of town, is a great restaurant.'
User: 'dont care'
System: 'Can I help you with anything else?'
User: 'can i have the address'
System: 'Twenty-four is on 24 Cambridge Science Park, Milton Road.'
User: 'can i have the ve postcode'
System: 'Twenty-four is in the area with the postcode CB4 0FN.'
User: 'thank you goodbye'

Output (English): Expensive