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: 'expensive restaurant in the castle hill area'
System: 'What type of food would you like? For example, Indian, Mediterranean, or Spanish.'
User: 'expensive restaurant in the castle hill area'
System: 'Let me confirm. You are looking for a venue in the cheap price range.'
User: 'no expensive'
System: 'What part of town do you have in mind? For example, something in the central, Girton, or King's Hedges area.'
User: 'castle hill'
System: 'Let me confirm. You don't care about the location and you are looking for a venue.'
User: 'castle hill area expensive restaurant what is the phone number and address'
System: 'Blue Spice, which is in the expensive price range, is a great restaurant.'
User: 'is that in the castle hill area'
System: 'Blue Spice is on Unit F1, Cambridge Leisure Park, Clifton Way and its phone number is 01223413337.'
User: 'is that in the castle hill area'
System: 'Let me confirm. You don't care about the location. You are looking for a venue.'
User: 'thank you have a good day'

Output (English): Expensive