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: 'background noise'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'background noise'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'background noise'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'east asian restaurants'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'east asian restaurants'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'east asian restaurants'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'background noise'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'background noise'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'east asian'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'east asian restaurant'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'cheap'
System: 'There is no restaurant serving east asian food in the cheap price range.'
User: 'cheap'
System: 'There is no restaurant serving east asian food in the cheap price range.'
User: 'background noise'
System: 'Would you like an east asian food, or you don't care?'
User: 'thank you good bye'
Question: 'Did the user ask for the phone number of the restaurant?'

Output (English): Yes