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 need an expensive restaurant in the addenbrookes area'
System: 'Would you like a venue with a cheap or expensive price range?'
User: 'expensive'
System: 'What type of food would you like? For example, Cafe food, or Fusion.'
User: 'fusion'
System: 'Would you like a venue with an expensive pricerange or with no entrance fee?'
User: 'expensive'
System: 'What type of food would you like? For example, East asian, Fusion, or Spanish.'
User: 'fusion'
System: 'What type of food would you like? For example, International, Spanish, or Turkish.'
User: 'international'
System: 'There is no restaurant in the Addenbrooke's area and serving international food.'
User: 'fusion'
System: 'Would you like an addenbrooke's area, or you don't care?'
User: 'addenbrookes'
System: 'Would you like an international food, or you don't care?'
User: 'i dont care'
System: 'What part of town do you have in mind? For example, something in the central, Romsey, or Trumpington area.'
User: 'addenbrookes'
System: 'What part of town do you have in mind? For example, something in the central, Newnham, or Trumpington area.'
User: 'central'
System: 'Blue Spice, which is in the expensive price range, is an outstanding restaurant.'
User: 'thank you goodbye'

Output (English): Expensive