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: 'sil'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'um a restaurant in f fen ditton'
System: 'Can I help you with anything else?'
User: 'i need a restaurant in fen ditton'
System: 'The Lion and Lamb, which is in the Fen Ditton part of town, is an outstanding restaurant.'
User: 'is it moderately priced'
System: 'The Lion and Lamb is in the moderate price range.'
User: 'what is the address'
System: 'The Lion and Lamb is located on High Street, Milton.'
User: 'i um what is the phone number'
System: 'The phone number of The Lion and Lamb is 01223860202.'
User: 'what is the price'
System: 'The Lion and Lamb is an outstanding venue. The price for main courses ranges from 5 pounds to 15 pounds and the price for a cheapest pint of beer is 3 pounds.'
User: 'thank you goodbye'
Question: 'Did the user ask for the phone number of the restaurant?'

Output (English): Yes