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.

Example Input: 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: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'yes im looking for a pub food restaurant and it should have cheap price range'
System: 'Are you looking for somewhere near a particular venue? For example, Clare College, or Sidney Sussex College.'
User: 'no'
System: 'The Fountain Inn, which serves pub food, is an outstanding restaurant. It's in the cheap price range.'
User: 'what is the address phone number and the price'
System: 'The Fountain Inn is located on 12 Regent Street and its phone number is 01223366540. The price for main courses ranges from 4 pounds 95 to 7 pounds 95 and the price for a glass of wine ranges from 3 pounds to 4 pounds 50 and the price for a cheapest pint of beer is 2 pounds.'
User: 'thank you goodbye'

Example Output: Cheap

Example Input: 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: 'hello i am looking for a moderately priced restaurant in barnwell area'
System: 'The Wheatsheaf, which is in the Barnwell part of town, is a great restaurant. It's in the moderate price range.'
User: 'ok so can you please tell me the address and phone number of the restaurant'
System: 'The Wheatsheaf is the only restaurant in the Barnwell area in the moderate price range.'
User: 'what is the address and the phone number'
System: 'The Wheatsheaf is located on Stow Road, Stow-Cum-Quy and its phone number is 01223812196.'
User: 'sil'
System: 'The Wheatsheaf is an outstanding restaurant.'
User: 'ok ah what types of food'
System: 'The Wheatsheaf serves traditional food.'
User: 'ok what type of food unitelligible'
System: 'The Wheatsheaf serves traditional food.'
User: 'ok thank you good bye'

Example Output: Moderate

Example Input: 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: 'id like a restaurant'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'i dont care'
System: 'What part of town do you have in mind? For example, Castle Hill, or Trumpington.'
User: 'chesterton'
System: 'Twenty-four is a great restaurant and it's in the Chesterton part of town.'
User: 'what is the address'
System: 'Twenty-four is on 24 Cambridge Science Park, Milton Road.'
User: 'what is the phone number'
System: 'The phone number of Twenty-four is 01223395800.'
User: 'what is the price range'
System: 'Twenty-four is in the moderate price range. The price for main courses ranges from 6 pounds to 15 pounds.'
User: 'thank you goodbye'

Example Output:
Don't Care