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 pub, or a restaurant.'
User: 'a restaurant in the trumpington area'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'expensive'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'expensive'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, the Book and Print Gallery, or Williams Art and Antiques.'
User: 'sil'
System: 'Are you looking for somewhere near a particular venue? For example, Byard Art, Christ's College, or the Museum of Classical Archaeology.'
User: 'trumpington'
System: 'What type of food would you like? For example, Drinks and snacks only, Chinese, or Greek.'
User: 'sil'
System: 'What type of food would you like? For example, Continental, or Turkish.'
User: 'trumpington'
System: 'What type of food would you like? For example, Continental, Greek, or Seafood.'
User: 'i dont care'
System: 'Can I help you with anything else?'
User: 'i dont care'
System: 'Can I help you with anything else?'
User: 'yes'
System: 'Are you looking for somewhere near a particular venue? For example, Great Saint Mary's Church, Jesus College, or the Whipple Museum.'
User: 'yes'
System: 'Are you looking for somewhere near a particular venue? For example, the People's Portraits Exhibition, Saint Catharine's College, or Wandlebury Country Park.'
User: 'no'
System: 'The Oak Bistro is an outstanding restaurant, it's in the Trumpington part of town and it's in the expensive price range.'
User: 'no'
System: 'The phone number of The Oak Bistro is 01223323361.'
User: 'thank you goodbye'

Output (English): Expensive