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: 'i want to find an expensive coffee shop serving italian food'
System: 'Caffe Nero is a great cafe and it serves italian food. It's in the expensive price range.'
User: 'what is the phone number'
System: 'The phone number of Caffe Nero is 01223307728.'
User: 'what is the postcode'
System: 'Caffe Nero is in the area with the postcode CB2 3PA.'
User: 'thank you good bye'

Output (English): Expensive