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: 'locate continental restaurant in the expensive price range'
System: 'Alimentum is an outstanding restaurant and it serves continental food. This place, which serves french food, is in the expensive price range.'
User: 'may i have the phone number and area'
System: 'The phone number of Alimentum is 01223413000. The price for main courses ranges from 17 pounds 50 to 21 pounds and the price for a glass of wine ranges from 6 pounds 50 to 10 pounds 50.'
User: 'what area is it in'
System: 'Alimentum is in the Addenbrooke's part of town.'
User: 'thank you good bye'

Output (English): Expensive