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'
System: 'The Rainbow Cafe is an outstanding restaurant, it serves traditional food and it serves vegetarian food.'
User: 'whats the address'
System: 'The Rainbow Cafe is on 9a King's Parade.'
User: 'what is the phone number'
System: 'The phone number of the Rainbow Cafe is 01223321551.'
User: 'thank you good bye'
Question: 'Did the user ask for the address of the restaurant?'

Output (English): Yes