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 restaurant'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'i dont care'
System: 'What type of food would you like? For example, East asian, Mediterranean, or Thai.'
User: 'i dont care'
System: 'Blue Spice is a great restaurant.'
User: 'phone number'
System: 'The phone number of Blue Spice is 01223413337.'
User: 'price'
System: 'Blue Spice is an outstanding venue. The price for main courses ranges from 12 pounds 50 to 12 pounds 50.'
User: 'location'
System: 'Blue Spice is an outstanding restaurant.'
User: 'area'
System: 'Blue Spice is an outstanding restaurant.'
User: 'where is it'
System: 'Blue Spice is located on Unit F1, Cambridge Leisure Park, Clifton Way.'
User: 'change location'
System: 'Blue Spice is located on Unit F1, Cambridge Leisure Park, Clifton Way.'
User: 'sil'
System: 'Blue Spice is an outstanding restaurant.'
User: 'sil'
System: 'Blue Spice is an outstanding restaurant.'
User: 'thank you goodbye'
Question: 'Did the user ask for the phone number of the restaurant?'

Output (English): Yes