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.'
User: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe.'
User: 'im looking for a cheap restaurant'
System: 'What type of food would you like? For example, American, Contemporary, or Italian.'
User: 'restaurant'
System: 'What type of food would you like? For example, Indian, Mediterranean, or Turkish.'
User: 'restaurant'
System: 'What type of food would you like? For example, Cafe food, Contemporary, or Japanese.'
User: 'contemporary'
System: 'All Bar One, which serves contemporary food, is an outstanding restaurant. It's in the cheap price range.'
User: 'is it in the fen ditton area'
System: 'Are you looking for somewhere near a particular venue? For example, Christ's College, the Gallery at twelve A High Street, or Gonville and Caius College.'
User: 'fen ditton area'
System: 'All Bar One is the only restaurant in the cheap price range that serves contemporary food.'
User: 'what is the phone number'
System: 'The phone number of All Bar One is 01223371081.'
User: 'what is the address'
System: 'All Bar One is on 36 Saint Andrews Street.'
User: 'thank you good bye'

Output (English): Cheap