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 cheap restaurant in the cherry hinton area'
System: 'HK Fusion, which is in the Cherry Hinton part of town, is a great restaurant. It's in the cheap price range.'
User: 'what is the address'
System: 'HK Fusion is located on 21 Burleigh Street.'
User: 'what is the phone number'
System: 'The phone number of HK Fusion is 01223355909.'
User: 'what type of food do they serve'
System: 'HK Fusion serves chinese food.'
User: 'thank you good bye'
Question: 'Did the user ask for the phone number of the restaurant?'

Output (English): Yes