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: 'cheap pub'
System: 'The Bakers, which is in the cheap price range, is a great pub.'
User: 'address'
System: 'The Bakers is on 176 East Road.'
User: 'phone number'
System: 'The phone number of The Bakers is 01223304121.'
User: 'price'
System: 'The Bakers is a great venue. The price for main courses ranges from 6 pounds to 8 pounds 49 and the price for a cheapest pint of beer is 2 pounds 25.'
User: 'children'
System: 'Would you like a venue with a cheap or moderate price range?'
User: 'children'
System: 'Would you like a venue with a cheap or moderate price range?'
User: 'thank you good bye'
Question: 'Did the user ask for the phone number of the restaurant?'

Output (English): Yes