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: 'i am looking for a seafood restaurant in an expensive price range'
System: 'Loch Fyne, which serves seafood, is a great restaurant. It's in the expensive price range.'
User: 'ok thank you what is the address and phone number of the venue'
System: 'Loch Fyne is on 37 Trumpington Street and its phone number is 01223902103. The price for main courses ranges from 9 pounds to 20 pounds.'
User: 'ok thank you good bye'

Output (English): Expensive