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 an italian restaurant expensive please'
System: 'The Wrestlers is an outstanding restaurant, it serves thai food and it's in the expensive price range.'
User: 'italian food'
System: 'The Sorrento, which serves italian food, is a great restaurant. It's in the expensive price range.'
User: 'may i have the address and the phone number'
System: 'The Sorrento is on 196 Cherry Hinton Road and its phone number is 01223243533.'
User: 'okay thank you goodbye'

Output (English): Expensive