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: 'im looking for an expensive restaurant in trumpington area'
System: 'What type of food would you like? For example, Contemporary, Continental, or Thai.'
User: 'no preference'
System: 'Are you looking for somewhere near a particular venue? For example, the Broughton House, Jesus College, or Saint John's College.'
User: 'no'
System: 'The Oak Bistro is an outstanding restaurant, it's in the Trumpington part of town and it's in the expensive price range.'
User: 'whats the price'
System: 'The Oak Bistro is an outstanding venue. The price for main courses ranges from 11 pounds 50 to 17 pounds 75.'
User: 'whats the phone number'
System: 'The phone number of The Oak Bistro is 01223323361.'
User: 'thank you goodbye'

Output (English): Expensive