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: 'The Oak Bistro, which is in the Trumpington part of town, is a great restaurant. It's in the expensive price range.'
User: 'can i have the telephone number and address please'
System: 'The Oak Bistro is located on 6 Lensfield Road. Its phone number is 01223323361.'
User: 'i need the address'
System: 'The Oak Bistro is located on 6 Lensfield Road.'
User: 'thank you goodbye'

Output (English): Expensive