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: 'beep'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'background noise'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'cheap restaurant'
System: 'What type of food would you like? For example, Chinese take away, Northern european, or Greek.'
User: 'cheap restaurant'
System: 'What type of food would you like? For example, American, Japanese, or Thai.'
User: 'i dont care'
System: 'La Raza is an outstanding restaurant and it's in the cheap price range.'
User: 'castle hill area'
System: 'What part of town do you have in mind? For example, something in the central, Fen Ditton, or Trumpington area.'
User: 'castle hill area'
System: 'Subway is an outstanding restaurant and it's in the cheap price range.'
User: 'address'
System: 'Subway is on 40-42 Mill Road.'
User: 'phone number'
System: 'The phone number of Subway is 01223461323.'
User: 'price'
System: 'Subway is an outstanding venue. The price for main courses ranges from 1 pound 99 to 5 pounds 60.'
User: 'thank you good bye'

Output (English): Cheap