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 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: 'background noise'
System: 'What kind of price range are you looking for? For example, moderate.'
User: 'background noise'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'cheap'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'a pub'
System: 'Are you looking for a venue with a television?'
User: 'a pub'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, Castle Galleries, or Old Schools.'
User: 'yes'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Castle Hill, or central area.'
User: 'no'
System: 'Are you looking for somewhere near a particular venue? For example, Castle Galleries, Clare College, or Hughes Hall.'
User: 'it doesnt matter'
System: 'What part of town do you have in mind? For example, something in the Fen Ditton, Girton, or King's Hedges area.'
User: 'no'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Arbury, or Cherry Hinton area.'
User: 'it doesnt matter'
System: 'The Baron of Beef, which is in the cheap price range, is an outstanding pub.'
User: 'it doesnt matter'
System: 'The Baron of Beef, which is in the cheap price range, is an outstanding pub.'
User: 'what is the address and phone number'
System: 'The Baron of Beef is on Bridge Street and its phone number is 01223505022.'
User: 'does it have an address'
System: 'The Baron of Beef is on Bridge Street.'
User: 'thank you good bye'


Ex Output:
Cheap


Ex 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 cafe'
System: 'What type of food would you like? For example, Drinks and snacks only, French, or Traditional.'
User: 'traditional'
System: 'There is no cafe serving traditional food.'
User: 'snacks'
System: 'There is no cafe serving traditional food.'
User: 'ah i am looking for a cafe for snacks'
System: 'There is no cafe serving drinks and snacks.'
User: 'im looking for a cafe food restaurant'
System: 'There is no cafe serving drinks and snacks.'
User: 'im looking for a cafe'
System: 'The Cambridge Blue is a great cafe.'
User: 'im looking for french food'
System: 'Can I help you with anything else?'
User: 'uh ya id like id like a cafe'
System: 'Can I help you with anything else?'
User: 'a cafe'
System: 'Can I help you with anything else?'
User: 'yes i am looking for a cafe'
System: 'Can I help you with anything else?'
User: 'a cafe'
System: 'Can I help you with anything else?'
User: 'yes please'
System: 'Can I help you with anything else?'
User: 'yes please'
System: 'Can I help you with anything else?'
User: 'ya i am looking for a cafe to eat at'
System: 'Can I help you with anything else?'
User: 'i think your broken'
System: 'Can I help you with anything else?'
User: 'yes i am trying to find a cafe'
System: 'Can I help you with anything else?'
User: 'thank you good bye'


Ex Output:
Cheap


Ex 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 pub with an internet connection and i dont care about the price range'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'i dont care about the price range'
System: 'What kind of venue are you looking for? For example, a pub.'
User: 'im looking for a pub with an internet connection'
System: 'The Bakers is a great pub with an internet connection.'
User: 'what is the address and post code'
System: 'The Bakers, which is in the area with the postcode CB1 1BG, is located on 176 East Road. The price for main courses ranges from 6 pounds to 8 pounds 49 and the price for a cheapest pint of beer is 2 pounds 25.'
User: 'thank you good bye'


Ex Output:

Don't Care