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: 'i am looking for a sea food restaurant with expensive price range pricing'
System: 'Loch Fyne, which serves seafood, is a great restaurant. It's in the expensive price range.'
User: 'can you give the address and the area of this restaurant'
System: 'Loch Fyne is on 37 Trumpington Street. The price for main courses ranges from 9 pounds to 20 pounds.'
User: 'unintelligible the area of this venue'
System: 'Loch Fyne is in the riverside part of town.'
User: 'ok thank you good bye'

Example Output: Expensive

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: 'im looking for a fusion restaurant and it should have moderate price range'
System: 'Aki Teri, which serves fusion food, is a great restaurant. It's in the moderate price range.'
User: 'ok can i have the phone number please'
System: 'The phone number of Aki Teri is 01223323888.'
User: 'thank you and could i have the price'
System: 'Aki Teri is located on 3-5 Quayside. The price for main courses ranges from 8 pounds 80 to 11 pounds 80.'
User: '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: 'static'
System: 'What kind of price range are you looking for? For example, free, or moderate.'
User: 'static'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'hi im looking'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'a moderately priced restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Christ's College, King's College, or the Ruskin Gallery.'
User: 'moderate price range'
System: 'What type of food would you like? For example, Cafe food, Drinks and snacks only, or Fusion.'
User: 'the barnwell area'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, central, or New Chesterton area.'
User: 'a cafe food'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, Fen Ditton, or Newnham area.'
User: 'yeah it should be in the barnwell area'
System: 'The Wheatsheaf is an outstanding restaurant, it's in the Barnwell part of town and it's in the moderate price range.'
User: 'a barnwell area'
System: 'The Wheatsheaf, which is in the Barnwell part of town, is an outstanding restaurant. It's in the moderate price range.'
User: 'ok can i get the phone number and price'
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: 'a phone number and price'
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: 'thank you good bye'

Example Output:
Moderate