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: 'sil'
System: 'What kind of price range are you looking for? For example, expensive, or moderate.'
User: 'sil'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'moderate'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'dont care'
System: 'What kind of venue are you looking for? For example, a restaurant.'
User: 'vegetarian restaurant'
System: 'The Rainbow Cafe, which serves traditional and vegetarian food, is a great restaurant. It's in the moderate price range.'
User: 'restaurant'
System: 'The Rainbow Cafe, which serves traditional and vegetarian food, is an outstanding restaurant. It's in the moderate price range.'
User: 'what is the phone number and price of the venue'
System: 'The phone number of the Rainbow Cafe is 01223321551. The price for main courses ranges from 7 pounds 95 to 10 pounds 95 and the price for a cappuccino is 1 pound 75.'
User: 'what is the phone number'
System: 'The phone number of the Rainbow Cafe is 01223321551.'
User: 'thank you have a good day'
System: 'Can I help you with anything else?'
User: 'sil'
System: 'Can I help you with anything else?'
User: 'sil'
System: 'The Rainbow Cafe is a great restaurant.'
User: 'thank you have a good day'

Output (English): Don't Care