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: 'looking for a japanese restaurant in the riverside area'
System: 'Teri-Aki, which is in the riverside part of town, is an outstanding restaurant. It serves japanese food.'
User: 'whats the address'
System: 'Teri-Aki is located on 6-8 Quayside.'
User: 'whats the phone number'
System: 'The phone number of Teri-Aki is 01223882288.'
User: 'and whats the price'
System: 'Teri-Aki is a great venue. The price for main courses ranges from 2 pounds 80 to 11 pounds 80 and the price for a glass of wine ranges from 3 pounds 80 to 5 pounds 80.'
User: 'thank you good bye'
Question: 'Did the user ask for the phone number of the restaurant?'

Output (English): Yes