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 price range are you looking for? For example, free, or moderate.'
User: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'uh greek restaurant i dont care about the price range'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'i dont care'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'i dont care'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'greek restaurant'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, central, or Newnham area.'
User: 'restaurant'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Arbury, or Chesterton area.'
User: 'uh'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, Chesterton, or central area.'
User: 'i dont care'
System: 'The Eraina Taverna is an outstanding restaurant and it serves greek food.'
User: 'central'
System: 'Can I help you with anything else?'
User: 'yes i need the address the phone number and the postcode'
System: 'The phone number of the Eraina Taverna is 01223902126 and it's in the area with the postcode CB2 3QA.'
User: 'okay i need the address'
System: 'The Eraina Taverna is on 2 Free School Lane.'
User: 'okay thank you goodbye'
Question: 'Did the user ask for the phone number of the restaurant?'

Output (English): Yes