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: 'background noise'
System: 'What kind of venue are you looking for? For example, a cafe.'
User: 'i am looking for a fast food restaurant with a cheap price range'
System: 'Let me confirm. You are looking for a fastfood venue.'
User: 'yes'
System: 'Burger King, which serves fastfood, is a great restaurant. It's in the cheap price range.'
User: 'whats the phone number'
System: 'The phone number of Burger King is 01223322666. The price for main courses ranges from 1 pound 99 to 6 pounds 79.'
User: 'thank you good bye'

Output (English): Cheap