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: 'what is a moderately priced east asian restaurant'
System: 'Little Seoul, which serves east asian food, is a great restaurant. It's in the moderate price range.'
User: 'what is the address'
System: 'Little Seoul is on 108 Regent Street.'
User: 'the phone number'
System: 'The phone number of Little Seoul is 01223308681.'
User: 'what area is in'
System: 'Little Seoul is in the riverside part of town.'
User: 'thank you goodbye'
Question: 'Did the user ask for the phone number of the restaurant?'

Output (English): Yes