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: 'im looking for a thia restaurant i dont care about the price'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'a thia restaurant'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'doesnt matter'
System: 'The Wrestlers is a great restaurant and it serves thai food.'
User: 'what is the address and area'
System: 'The Wrestlers is on 337 Newmarket Road and its phone number is 01223566554.'
User: 'what is its area'
System: 'The Wrestlers is in the riverside part of town.'
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: 'looking for a mediterranean restaurant in the moderate price range'
System: 'Nando's Restaurant, Saint Andrews Street, which serves mediterranean food, is a great restaurant. It's in the moderate price range.'
User: 'whats the address'
System: 'Nando's Restaurant, Saint Andrews Street is located on 33-34 Saint Andrews Street.'
User: 'whats the phone number'
System: 'The phone number of Nando's Restaurant, Saint Andrews Street is 01223327908.'
User: 'whats the postcode'
System: 'Nando's Restaurant, Saint Andrews Street is in the area with the postcode CB2 3AR.'
User: 'thank you good bye'

[EX A]: Moderate

[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: 'seafood restaurant'
System: 'Let me confirm. You are looking for a seafood venue.'
User: 'yes'
System: 'Loch Fyne is a great restaurant. It serves seafood.'
User: 'expensive price range'
System: 'Loch Fyne is an outstanding venue. The price for main courses ranges from 9 pounds to 20 pounds.'
User: 'what is the phone number and address'
System: 'Loch Fyne is located on 37 Trumpington Street and its phone number is 01223902103.'
User: 'thank you good bye'

[EX A]:
Expensive