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: 'id like a moderately priced restaurant in the new chesterton area'
System: 'Hakka is an outstanding restaurant, it's in the New Chesterton part of town and it's in the moderate price range.'
User: 'may i have the phone number please'
System: 'The phone number of Hakka is 01223568988.'
User: 'what type of food'
System: 'Hakka serves chinese food.'
User: 'ok thank you good bye'
Question: 'Did the user ask for the phone number of the restaurant?'

Output (English): Yes