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: 'unintelligible'
System: 'Are you looking for somewhere near a particular venue? For example, Byard Art, Gonville and Caius College, or Magdalene College.'
User: 'im looking for a restaurant in the fen ditton area'
System: 'What part of town do you have in mind? For example, Girton, or riverside.'
User: 'cheap'
System: 'What type of food would you like? For example, Drinks and snacks only, Italian, or Spanish.'
User: 'fen ditton'
System: 'The Milton Park English and Thai Restaurant, which is in the Fen Ditton part of town, is an outstanding restaurant. It's in the cheap price range.'
User: 'che cheap'
System: 'The Milton Park English and Thai Restaurant, which is in the Fen Ditton part of town, is a great restaurant. It's in the cheap price range.'
User: 'may i have the phone number a'
System: 'The phone number of the Milton Park English and Thai Restaurant is 01223864602.'
User: 'sil'
System: 'The Milton Park English and Thai Restaurant is a great restaurant, it's in the Fen Ditton part of town and it's in the cheap price range.'
User: 'phone number'
System: 'The phone number of the Milton Park English and Thai Restaurant is 01223864602.'
User: 'phone number'
System: 'The phone number of the Milton Park English and Thai Restaurant is 01223864602.'
User: 'thank you goodbye'

Output (English): Cheap