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 trumpington area'
System: 'What type of food would you like? For example, pub, American, or Greek.'
User: 'expensive restaurant in trumpington area'
System: 'What type of food would you like? For example, Greek, Middleeastern, or Vegetarian.'
User: 'expensive restaurant in trumpington area'
System: 'What type of food would you like? For example, pub, English, or Italian.'
User: 'i dont care'
System: 'The Oak Bistro, which is in the Trumpington part of town, is a great restaurant.'
User: 'english'
System: 'The Oak Bistro is located on 6 Lensfield Road.'
User: 'whats the address'
System: 'The Oak Bistro is located on 6 Lensfield Road.'
User: 'whats the phone number'
System: 'The phone number of The Oak Bistro is 01223323361.'
User: 'th whats the phone number'
System: 'The phone number of The Oak Bistro is 01223323361.'
User: 'whats the price'
System: 'The Oak Bistro is a great venue. The price for main courses ranges from 11 pounds 50 to 17 pounds 75.'
User: 'thank you goodbye'

Output (English): Expensive