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: 'sil'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'i want a'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'i want a cheap coffee shop'
System: 'What part of town do you have in mind? For example, Barnwell, or central.'
User: 'cheap'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Fen Ditton, or Girton area.'
User: 'i dont care'
System: 'Are you looking for somewhere near a particular venue? For example, Castle Galleries, Sidney Sussex College, or Primavera.'
User: 'i dont care'
System: 'The Cambridge Blue, which is in the cheap price range, is a great cafe.'
User: 'what is the address and phone number'
System: 'The Cambridge Blue is located on 24 Regent Street. Its phone number is 01223369222.'
User: 'thank you goodbye'
Question: 'Did the user ask for the phone number of the restaurant?'

Output (English): Yes