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: 'breathing'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'i would like a restaurant in barnwell'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'i would like a restaurant in barnwell'
System: 'Are you looking for somewhere near a particular venue? For example, Clare College, the People's Portraits Exhibition, or Trinity College.'
User: 'i dont care about the price range'
System: 'What type of food would you like? For example, Mexican and Tex Mex, Continental, or Fastfood.'
User: 'a restaurant in barnwell'
System: 'What type of food would you like? For example, Mexican and Tex Mex, or Northern european.'
User: 'it doesnt matter'
System: 'The Wheatsheaf, which is in the Barnwell part of town, is a great restaurant.'
User: 'does not matter'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'may i have the phone number'
System: 'The phone number of the Wheatsheaf is 01223812196. The price for main courses ranges from 4 pounds to 13 pounds and the price for a cheapest pint of beer is 2 pounds 65.'
User: 'i dont care about the price range'
System: 'The Wheatsheaf is a great venue. The price for main courses ranges from 4 pounds to 13 pounds and the price for a cheapest pint of beer is 2 pounds 65.'
User: 'what type is the wheatsheaf'
System: 'The Wheatsheaf serves traditional food.'
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 want to find a norther european restaurant'
System: 'Polonia, which serves northern european food, is a great restaurant.'
User: 'area phone number and the price'
System: 'The phone number of Polonia is 01223902138. The price for main courses ranges from 1 pound 50 to 7 pounds 50.'
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: 'international restaurant moderate price range'
System: 'Giraffe, which serves international food, is an outstanding restaurant. It's in the moderate price range.'
User: 'phone number for giraffe'
System: 'Giraffe is located on Christ's Lane and its phone number is 01223300707.'
User: 'postcode for giraffe'
System: 'Giraffe is in the area with the postcode CB1 1NP.'
User: 'thank you goodbye'

[EX A]:
Moderate