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, or a restaurant.'
User: 'background noise'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'restaurant'
System: 'What type of food would you like? For example, Drinks and snacks only, Spanish, or Thai.'
User: 'restaurants'
System: 'What part of town do you have in mind? For example, something in the central, King's Hedges, or New Chesterton area.'
User: 'cheap restaurant'
System: 'The Michaelhouse Centre, which doesn't charge any entrance fee, is a great restaurant.'
User: 'fen ditton'
System: 'The Michaelhouse Centre is a great restaurant.'
User: 'fen ditton'
System: 'The Michaelhouse Centre is an outstanding restaurant.'
User: 'thank you good bye'

Output (English): Cheap