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: 'a moderate priced restaurant in new chesterton'
System: 'Hakka, which is in the New Chesterton part of town, is an outstanding restaurant. It's in the moderate price range.'
User: 'what is the address and phone number'
System: 'Hakka is on 24 Milton Road and its phone number is 01223568988. The price for main courses ranges from 5 pounds to 13 pounds.'
User: 'sil'
System: 'Hakka is an outstanding restaurant.'
User: 'what type of partial'
System: 'Hakka serves chinese food.'
User: 'what type of food'
System: 'Hakka serves chinese food.'
User: 'thank you goodbye'
Question: 'Did the user ask for the phone number of the restaurant?'

Output (English): Yes