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: 'expensive restaurant'
System: 'What type of food would you like? For example, pub, Italian, or Spanish.'
User: 'fenditton area'
System: 'What type of food would you like? For example, Contemporary, Seafood, or Traditional.'
User: 'i dont care'
System: 'Are you looking for somewhere near a particular venue? For example, Cherry Hinton Water Play, the Gallery at twelve A High Street, or the People's Portraits Exhibition.'
User: 'fenditton area'
System: 'Let me confirm. You don't care about the food. You are looking for a venue.'
User: 'expensive restaurant'
System: 'Let me confirm. You don't care about the food and you are looking for a venue.'
User: 'yes'
System: 'Are you looking for somewhere near a particular venue? For example, Clare Hall, the Gallery at twelve A High Street, or the Lammas Land Park.'
User: 'no'
System: 'Blue Spice, which is in the expensive price range, is a great restaurant.'
User: 'no'
System: 'Blue Spice, which is in the expensive price range, is a great restaurant.'
User: 'address'
System: 'Blue Spice is on Unit F1, Cambridge Leisure Park, Clifton Way.'
User: 'phone number'
System: 'The phone number of Blue Spice is 01223413337.'
User: 'type of food'
System: 'Blue Spice is an outstanding restaurant.'
User: 'type of food'
System: 'Blue Spice is an outstanding restaurant.'
User: 'thank you good bye'

Output (English): Expensive