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: 'can i have an expensive greek restaurant'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'noise sil'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'expensive'
System: 'The Varsity, which serves greek food, is a great restaurant. It's in the expensive price range.'
User: 'can i have the address'
System: 'The Varsity is located on 35 Saint Andrew's Street.'
User: 'can i have the phone number'
System: 'The phone number of the Varsity is 01223356060.'
User: 'may i have the post code'
System: 'The Varsity is in the area with the postcode CB2 3AR.'
User: 'thank you good bye'

Output (English): Expensive