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 want to find an expensive seafood restaurant'
System: 'Loch Fyne, which serves seafood, is an outstanding restaurant. It's in the expensive price range.'
User: 'what is the address and phone number'
System: 'Loch Fyne is located on 37 Trumpington Street and its phone number is 01223902103.'
User: 'what is the cost'
System: 'Loch Fyne is in the riverside part of town.'
User: 'how much does it cost'
System: 'Loch Fyne, which serves seafood, is a great restaurant. It's in the expensive price range.'
User: 'thank you goodbye'

Output (English): Expensive