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.

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: 'looking for an american restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Cherry Hinton Water Play, the Ruskin Gallery, or Saint John's College.'
User: 'ah no'
System: 'What kind of price range are you looking for? For example, expensive.'
User: 'i dont care'
System: 'Gourmet Burger , which serves american food, is an outstanding restaurant.'
User: 'ah whats the address phone number'
System: 'Gourmet Burger  is on 43-45 Regent Street and its phone number is 01223312598.'
User: 'and what area is that in'
System: 'Gourmet Burger  is in the central part of town.'
User: 'thank you goodbye'
Don't Care
The user indicated that they did not care about the price range of the restaurant. Therefore, even if they ask for other information like the address or area as requested in this scenario, their price range preference remains "Don't Care"..