Instructions: The input is a conversation between an automated system and a user looking for suggestions for pubs, restaurants and coffee shops in Cambridge. In the dialogue, the user may provide some criteria for the type of place they want such as price range, cuisine, etc. Given such a dialogue, output the price range the user if looking for which can take one of four values: Cheap, Moderate, Expensive and Don't Care. Output cannot be any other value than the four values. Note that if the user asks for the prices of items provided at a pub, restaurant or coffee shop but doesn't mention the price range they are looking for then the correct classification will be Don't Care. If the user does not mention a particular price, the correct classification will be Don't Care.
Input: 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: 'background noise'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'background noise'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'background noise'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'im looking for a greek restaurant and i dont care about the price'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'i dont care'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'i dont care'
System: 'What kind of venue are you looking for? For example, a cafe.'
User: 'greek restaurant'
System: 'What part of town do you have in mind? For example, Arbury, or Barnwell.'
User: 'restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Byard Art, the Book and Print Gallery, or Queens' College.'
User: 'i dont care about the price range'
System: 'The Eraina Taverna, which serves greek food, is a great restaurant.'
User: 'no'
System: 'The Eraina Taverna, which serves greek food, is an outstanding restaurant.'
User: 'whats the phone number and the area'
System: 'The phone number of the Eraina Taverna is 01223902126.'
User: 'and what area is it in'
System: 'The Eraina Taverna is in the central part of town.'
User: 'background noise'
System: 'The Eraina Taverna is a great restaurant.'
User: 'what is the area of the venue'
System: 'The Eraina Taverna is in the central part of town.'
User: 'thank you good bye'

Output:
Don't Care