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 restaurant in the barnwell area'
System: 'What type of food would you like? For example, Chinese take away, Japanese, or Turkish.'
User: 'ah it doesnt matter as long as its moderately priced'
System: 'The Wheatsheaf, which is in the Barnwell part of town, is an outstanding restaurant. It's in the moderate price range.'
User: 'ah whats the address and price'
System: 'The Wheatsheaf is on Stow Road, Stow-Cum-Quy. 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: 'ah whats the address again'
System: 'The Wheatsheaf is located on Stow Road, Stow-Cum-Quy.'
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: 'uh can you find me a mexicana texmex restaurant in the expensive price range'
System: 'Nanna Mexico is a great restaurant, it serves mexican and tex mex food and it's in the expensive price range.'
User: 'ok what is the phone number and address of the venue'
System: 'Nanna Mexico is located on 33 Regent Street and its phone number is 01223902150. The price for main courses ranges from 5 pounds 35 to 15 pounds 50 and the price for a cappuccino is 2 pounds 95.'
User: 'ok what is the address of the venue'
System: 'Nanna Mexico is located on 33 Regent Street.'
User: 'ok thank you goodbye'

[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: 'looking for a moderately priced restaurant in the new chesterton area'
System: 'Hakka, which is in the New Chesterton part of town, is an outstanding restaurant. It's in the moderate price range.'
User: 'what is the price'
System: 'Hakka is an outstanding venue. The price for main courses ranges from 5 pounds to 13 pounds.'
User: 'what is the phone number'
System: 'The phone number of Hakka is 01223568988.'
User: 'what is the address'
System: 'Hakka is on 24 Milton Road.'
User: 'thank you good bye'

[EX A]:
Moderate