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: 'ah looking for a contemporary restaurant in the castle hill area'
System: 'What part of town do you have in mind? For example, something in the Arbury, Chesterton, or King's Hedges area.'
User: 'castle hill area'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, King's Hedges, or Trumpington area.'
User: 'castle hill'
System: 'What part of town do you have in mind? For example, Addenbrooke's, or Castle Hill.'
User: 'castle hill'
System: 'Cotto is an outstanding restaurant and it serves contemporary food.'
User: 'ah whats the address phone number and post code'
System: 'Cotto, which is in the area with the postcode CB1 1BG, is on 183 East Road. Its phone number is 01223302010.'
User: 'thank you good bye'
Question: 'Did the user ask for the phone number of the restaurant?'

Output (English): Yes