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: 'uh can you find me a mexicana texmex restaurant in the expensive price range'
System: 'Nanna Mexico is a great restaurant, it serves mexican and tex mex food and it's in the expensive price range.'
User: 'ok what is the phone number and address of the venue'
System: 'Nanna Mexico is located on 33 Regent Street and its phone number is 01223902150. The price for main courses ranges from 5 pounds 35 to 15 pounds 50 and the price for a cappuccino is 2 pounds 95.'
User: 'ok what is the address of the venue'
System: 'Nanna Mexico is located on 33 Regent Street.'
User: 'ok thank you goodbye'

Output (English): Expensive