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 pub.'
User: 'um unintelligible'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'i am looking for a restaurant that serves pub'
System: '196 Meze Bar, which is in the Romsey part of town, is an outstanding restaurant.'
User: 'i am looking for a restaurant that serves pub food'
System: 'There is no restaurant in the Romsey area and serving thai food.'
User: 'lets start over please'
System: 'The Royal Standard, which is in the Romsey part of town, is a great restaurant.'
User: 'unintelligible'
System: 'Would you like a thai food, or you don't care?'
User: 'no i would like pub food'
System: 'The Kingston Arms, which is in the Romsey part of town, is a great restaurant. It serves pub food.'
User: 'what is its price range'
System: 'The Kingston Arms is in the cheap price range.'
User: 'what is its phone number'
System: 'The phone number of The Kingston Arms is 01223319414.'
User: 'what is its address'
System: 'The Kingston Arms is located on 33 Kingston Street.'
User: 'thank you goodbye'

Output (English): Cheap