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: 'spanish restaurant'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'restaurant'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'cheap'
System: 'Let me confirm. You are looking for a venue in the cheap price range.'
User: 'cheap'
System: 'What type of food would you like? For example, Cafe food, Fastfood, or Greek.'
User: 'spanish'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, Cafe Jello, or the Ruskin Gallery.'
User: 'no'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Romsey, or Trumpington area.'
User: 'none'
System: 'What part of town do you have in mind? For example, Castle Hill, or Fen Ditton.'
User: 'none'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, Newnham, or Romsey area.'
User: 'none'
System: 'What type of food would you like? For example, East asian, French, or Japanese.'
User: 'castle hill'
System: 'What part of town do you have in mind? For example, something in the Girton, New Chesterton, or Trumpington area.'
User: 'spanish'
System: 'There is no restaurant serving english food in the cheap price range.'
User: 'castle hill'
System: 'Let me confirm. You are looking for an english venue.'
User: 'goodbye'

Output (English): Cheap