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: 'unitelligible'
System: 'Are you looking for somewhere near a particular venue? For example, Kettle's Yard, Old Schools, or the Ruskin Gallery.'
User: 'an expensive restaurant and it should be in the castle hill area'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, central, or New Chesterton area.'
User: 'sil'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, Fen Ditton, or King's Hedges area.'
User: 'castle hill'
System: 'Blue Spice, which is in the expensive price range, is an outstanding restaurant.'
User: 'sil'
System: 'Blue Spice, which is in the expensive price range, is an outstanding restaurant.'
User: 'castle hill'
System: 'There is no pub in the expensive price range.'
User: 'can you please give me the phone number'
System: 'Blue Spice is on Unit F1, Cambridge Leisure Park, Clifton Way and its phone number is 01223413337.'
User: 'expensive'
System: 'There is no pub in the expensive price range.'
User: 'can you please give me the type of food it serves'
System: 'Can I help you with anything else?'
User: 'sil'
System: 'Can I help you with anything else?'
User: 'yes can you please give me the type of food it serves'
System: 'Can I help you with anything else?'
User: 'expensive restaurant in the castle hill area'
System: 'Blue Spice is a great restaurant and it's in the expensive price range.'
User: 'sil'
System: 'The Wrestlers, which serves thai food, is a great restaurant. It's in the expensive price range.'
User: 'what area is that in'
System: 'The Wrestlers is in the riverside part of town.'
User: 'can you please give me something in castle hill area'
System: 'There is no restaurant in the Girton area and serving thai food.'
User: 'expensive restaurant in castle hill area'
System: 'Blue Spice, which is in the Girton part of town, is a great restaurant. It's in the expensive price range.'
User: 'is it in the castle hill area'
System: 'Blue Spice is an outstanding restaurant, it's in the Girton part of town and it's in the expensive price range.'
User: 'can you please give me the phone number and type of food it serves'
System: 'The phone number of Blue Spice is 01223413337.'
User: 'the type of food please'
System: 'Blue Spice serves indian food.'
User: 'thank you goodbye'

Output (English): Expensive