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.

[EX Q]: 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: 'noise sil'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'i dont care'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'mediterranean'
System: 'Are you looking for a cafe or a restaurant?'
User: 'restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Gonville and Caius College, Jesus College, or Milton Country Park.'
User: 'i dont care'
System: 'Nando's Restaurant, Cambridge Leisure Park, which serves mediterranean food, is a great restaurant.'
User: 'address'
System: 'Nando's Restaurant, Cambridge Leisure Park is located on Unit G5, Cambridge Leisure Park, Clifton Way.'
User: 'thank you good bye'

[EX A]: Don't Care

[EX Q]: 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: 'i am looking for a sea food restaurant with expensive price range pricing'
System: 'Loch Fyne, which serves seafood, is a great restaurant. It's in the expensive price range.'
User: 'can you give the address and the area of this restaurant'
System: 'Loch Fyne is on 37 Trumpington Street. The price for main courses ranges from 9 pounds to 20 pounds.'
User: 'unintelligible the area of this venue'
System: 'Loch Fyne is in the riverside part of town.'
User: 'ok thank you good bye'

[EX A]: Expensive

[EX Q]: 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: 'im looking for an american restaurant in a cheap price range'
System: 'Gourmet Burger  is a great restaurant, it serves american food and it's in the cheap price range.'
User: 'whats the phone number'
System: 'The phone number of Gourmet Burger  is 01223312598. The price for main courses ranges from 3 pounds 95 to 8 pounds 45.'
User: 'cough'
System: 'Gourmet Burger  is an outstanding restaurant.'
User: 'whats the ph phone number'
System: 'The phone number of Gourmet Burger  is 01223312598.'
User: 'of the area'
System: 'Gourmet Burger  is an outstanding restaurant.'
User: 'what area is it in'
System: 'Gourmet Burger  is in the central part of town.'
User: 'thank you goodbye'

[EX A]:
Cheap