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: 'unintelligible'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'unintelligible'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'a cheap price range'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'unintelligible'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'unintelligible'
System: 'Are you looking for a venue with an internet connection?'
User: 'cafe food restaurant'
System: 'Are you looking for a pub or a restaurant?'
User: 'restaurant cafe food restaurant'
System: 'Subway, which serves cafe food, is a great restaurant. It's in the cheap price range.'
User: 'was the address and post code'
System: 'Subway, which is in the area with the postcode CB1 2AD, is located on 40-42 Mill Road. The price for main courses ranges from 1 pound 99 to 5 pounds 60.'
User: 'thank you goodbuy'

Output (English): Cheap