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: 'yes im looking for a cafe food restaurant in the cheap price range'
System: 'Subway, which serves cafe food, is a great restaurant. It's in the cheap price range.'
User: 'background noise'
System: 'Subway is an outstanding restaurant, it serves cafe food and it's in the cheap price range.'
User: 'can i have the address and postcode'
System: 'Subway is located on 40-42 Mill Road and it's in the area with the postcode CB1 2AD. The price for main courses ranges from 1 pound 99 to 5 pounds 60.'
User: 'thank you good bye'

Output (English): Cheap