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: 'i am looking for a cafe'
System: 'What kind of price range are you looking for? For example, free, or moderate.'
User: 'it doesnt matter'
System: 'Are you looking for somewhere near a particular venue? For example, Clare College, the Saint Barnabas Press Gallery, or Williams Art and Antiques.'
User: 'not really'
System: 'What type of food would you like? For example, East asian, Greek, or Seafood.'
User: 'breakfast'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, central, or Trumpington area.'
User: 'how bout trumpington'
System: 'There is no cafe in the Trumpington area.'
User: 'how bout cherry hinton'
System: 'Are you looking for a venue in the Cherry Hinton or Trumpington area?'
User: 'cherry hinton'
System: 'There is no cafe in the Cherry Hinton area.'
User: 'im looking for a cafe'
System: 'There is no cafe in the Cherry Hinton area.'
User: 'london'
System: 'Would you like a cherry hinton area, or you don't care?'
User: 'i dont care'
System: 'Would you like a moderate price range, or you don't care?'
User: 'i dont care'
System: 'What type of food would you like? For example, Northern european, Japanese, or Vegetarian.'
User: 'cafe'
System: 'What type of food would you like? For example, International, Mediterranean, or Traditional.'
User: 'traditional'
System: 'There is no cafe serving 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: 'im looking for a restaurant in new chesterton i dont care about the price'
System: 'What type of food would you like? For example, East asian, Contemporary, or Continental.'
User: 'contemporary'
System: 'There is no restaurant in the New Chesterton area and serving contemporary food.'
User: 'do you have another restaurant in the new chesterton area'
System: 'There is no restaurant in the New Chesterton area and serving contemporary food.'
User: 'sil'
System: 'Hakka, which is in the New Chesterton part of town, is an outstanding restaurant.'
User: 'sil'
System: 'What type of food would you like? For example, Chinese take away, Chinese, or Contemporary.'
User: 'what is the phone number and address'
System: 'Hakka is located on 24 Milton Road. Its phone number is 01223568988. The price for main courses ranges from 5 pounds to 13 pounds.'
User: 'chinese'
System: 'Hakka, which is in the New Chesterton part of town, is an outstanding restaurant. It serves chinese food.'
User: 'thank you goodbye'

[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: 'background noise'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'unintelligible price range'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'an international restaurant'
System: 'Giraffe, which serves international food, is an outstanding restaurant.'
User: 'does it have a moderate price range'
System: 'Giraffe is in the moderate price range. The price for main courses ranges from 6 pounds 95 to 14 pounds 95 and the price for a cappuccino is 2 pounds 10.'
User: 'whats the phone number and address of the venue'
System: 'Giraffe is located on Christ's Lane and its phone number is 01223300707.'
User: 'thank you good bye'

[EX A]:
Moderate