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: 'im looking for a free french restaurant'
System: 'Ta Bouche is an outstanding restaurant, it serves french food and it doesn't charge any entrance fee.'
User: 'what is the address'
System: 'Ta Bouche is located on 10-15 Market Passage.'
User: 'phone number'
System: 'The phone number of Ta Bouche is 01223462277.'
User: 'postcode'
System: 'Ta Bouche is in the area with the postcode CB2 3PF.'
User: 'thank you good bye'
Question: 'Did the user ask for the phone number of the restaurant?'

Output (English): Yes