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: 'coffee shop serving italian food and it should be expensive price range'
System: 'Caffe Nero is an outstanding cafe, it serves italian food and it's in the expensive price range.'
User: 'phone number and post code please'
System: 'The phone number of Caffe Nero is 01223307728 and it's in the area with the postcode CB2 3PA. The price for main courses ranges from 3 pounds 50 to 3 pounds 85 and the price for a cappuccino is 2 pounds 15.'
User: 'noise sil'
System: 'Caffe Nero, which serves italian food, is a great cafe. It's in the expensive price range.'
User: 'post code'
System: 'Caffe Nero is in the area with the postcode CB2 3PA.'
User: 'thank you and good bye'

Output (English): Expensive