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 a mexican restaurant and it should be very expensive'
System: 'Are you looking for somewhere near a particular venue? For example, Byard Art, Artworks, or Milton Country Park.'
User: 'no'
System: 'Nanna Mexico, which serves mexican and tex mex food, is an outstanding restaurant. It's in the expensive price range.'
User: 'what is the address and pnone number'
System: 'Nanna Mexico is on 33 Regent Street and its phone number is 01223902150.'
User: 'thank you goodbye'
Question: 'Did the user ask for the phone number of the restaurant?'

Output (English): Yes