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: 'background noise'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'restaurant'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'in kings hedges'
System: 'The Ranch is a great restaurant. It's in the King's Hedges part of town.'
User: 'moderately priced'
System: 'The Ranch is a great venue. The price for main courses ranges from 6 pounds to 12 pounds 50.'
User: 'address'
System: 'The Ranch is on 100 Histon Road.'
User: 'phone number'
System: 'The phone number of the Ranch is 01223322772.'
User: 'postcode'
System: 'The Ranch is in the area with the postcode CB4 3JP.'
User: 'moderate price'
System: 'The Ranch is a great venue. The price for main courses ranges from 6 pounds to 12 pounds 50.'
User: 'thank you good bye'
Question: 'Did the user ask for the phone number of the restaurant?'

Output (English): Yes