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 a cafe food restaurant'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'doesnt matter'
System: 'Are you looking for somewhere near a particular venue? For example, Castle Galleries, Downing College, or Saint John's College.'
User: 'no'
System: 'Carringtons is an outstanding cafe and a great restaurant. It serves cafe food and english food.'
User: 'what is'
System: 'Carringtons is located on 23 Market Street.'
User: 'the phone number'
System: 'The phone number of Carringtons is 01223361792.'
User: 'what is the address'
System: 'Carringtons is located on 23 Market Street.'
User: 'thank you good bye'
Question: 'Did the user ask for the phone number of the restaurant?'

Output (English): Yes