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 vegetarian restaurant in the girton area'
System: 'The Rainbow Cafe is a great restaurant, it's in the Girton part of town and it serves traditional and vegetarian food.'
User: 'ok and whats the address'
System: 'The Rainbow Cafe is on 9a King's Parade.'
User: 'and the phone number'
System: 'The phone number of the Rainbow Cafe is 01223321551.'
User: 'ok thank you good bye'
Question: 'Did the user ask for the phone number of the restaurant?'

Output (English): Yes