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: 'restaurant'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'bump restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Cherry Hinton Water Play, Gonville and Caius College, or the Michaelhouse Centre.'
User: 'girton area'
System: 'What type of food would you like? For example, Contemporary, English, or Fusion.'
User: 'girton area'
System: 'What type of food would you like? For example, Italian, Japanese, or Vegetarian.'
User: 'i dont care'
System: 'Blue Spice, which is in the Girton part of town, is a great restaurant.'
User: 'number'
System: 'What kind of price range are you looking for? For example, expensive, or moderate.'
User: 'cheap'
System: 'The Dojo Noodle Bar, which is in the Girton part of town, is a great restaurant. It's in the cheap price range.'
User: 'number'
System: 'Let me confirm. You are looking for a restaurant.'
User: 'yes'
System: 'The Dojo Noodle Bar, which is in the Girton part of town, is a great restaurant. It's in the cheap price range.'
User: 'phone number'
System: 'Let me confirm. You are looking for a restaurant.'
User: 'thank you good bye'
Question: 'Did the user ask for the phone number of the restaurant?'

Output (English): Yes