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 venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'im looking for a contemporary restaurant'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'ah contemporary'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'cheap'
System: 'All Bar One is a great restaurant, it serves contemporary food and it's in the cheap price range.'
User: 'cheap'
System: 'All Bar One, which serves contemporary food, is an outstanding restaurant. It's in the cheap price range.'
User: 'what is phone number'
System: 'All Bar One, which serves contemporary food, is an outstanding restaurant. It's in the cheap price range.'
User: 'what is the phone number'
System: 'The phone number of All Bar One is 01223371081.'
User: 'what is the phone number'
System: 'The phone number of All Bar One is 01223371081.'
User: 'what are the prices'
System: 'All Bar One is in the cheap price range.'
User: 'what are the prices'
System: 'All Bar One is an outstanding venue. The price for main courses ranges from 7 pounds 95 to 12 pounds 95 and the price for a glass of wine ranges from 2 pounds 85 to 6 pounds 95.'
User: 'what are the prices'
System: 'All Bar One is in the cheap price range. The price for main courses ranges from 7 pounds 95 to 12 pounds 95 and the price for a glass of wine ranges from 2 pounds 85 to 6 pounds 95.'
User: 'thank you and goodbye'

Output (English): Cheap