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: 'i want to find a fast food restaurant'
System: 'Would you like fastfood or X food?'
User: 'fast food'
System: 'Burger King, which serves fastfood, is an outstanding restaurant.'
User: 'is it cheap price range'
System: 'Burger King is an outstanding venue. The price for main courses ranges from 1 pound 99 to 6 pounds 79.'
User: 'i need the address and price of venue'
System: 'Burger King is located on The Grafton Centre. The price for main courses ranges from 1 pound 99 to 6 pounds 79.'
User: 'ok thank you good bye'

Output (English): Cheap