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 restaurant.'
User: 'breathing sil'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'hi'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'hi i am looking for an'
System: 'What kind of price range are you looking for? For example, free, or moderate.'
User: 'hi i am looking for an ex'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'im looking for an expensive restaurant'
System: 'Caffe Nero is a great cafe and it's in the expensive price range.'
User: 'hi im looking for an expensive restaurant'
System: 'Caffe Nero is an outstanding venue. The price for main courses ranges from 3 pounds 50 to 3 pounds 85 and the price for a cappuccino is 2 pounds 15.'
User: 'sil'
System: 'What type of food would you like? For example, Mexican and Tex Mex, Greek, or International.'
User: 'im looking for an expensive restaurant'
System: 'What type of food would you like? For example, Fusion, Middleeastern, or Thai.'
User: 'thia food'
System: 'Are you looking for somewhere near a particular venue? For example, Byard Art, the Museum Of Technology, or the Ruskin Gallery.'
User: 'sil'
System: 'Are you looking for somewhere near a particular venue? For example, Castle Galleries, Christ's College, or Kettle's Yard.'
User: 'some where at trumpington area'
System: 'The phone number of Caffe Nero is 01223307728.'
User: 'is it in trumpington area'
System: 'Caffe Nero is a great cafe.'
User: 'is it in the trumington area'
System: 'Caffe Nero is a great cafe.'
User: 'whats the address please'
System: 'Caffe Nero is on 11 Market Street.'
User: 'which area'
System: 'I am sorry but there is no information on Caffe Nero's area.'
User: 'ok thank you good bye'

Output (English): Expensive