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: 'noise sil'
System: 'Let me confirm. You are looking for a venue with no entrance fee.'
User: 'noise sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'no im looking for a continental re'
System: 'Are you looking for a cafe or a restaurant?'
User: 'ah continental restaurant'
System: 'There is no restaurant serving continental food that is providing services for free.'
User: 'ah a restaurant with expensive price'
System: 'Are you looking for somewhere near a particular venue? For example, Christ's College, Saint Catharine's College, or The Fitzwilliam Museum.'
User: 'a continental restaurant wi'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Chesterton, or King's Hedges area.'
User: 'no no'
System: 'Are you looking for somewhere near a particular venue? For example, Artworks, Castle Galleries, or Corpus Christi.'
User: 'i am looking for a continetal restaurant'
System: 'What part of town do you have in mind? For example, Barnwell, or New Chesterton.'
User: 'continental restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, the Michaelhouse Centre, the Ruskin Gallery, or the Whipple Museum of the History of Science.'
User: 'barnwell'
System: 'Are you looking for somewhere near a particular venue? For example, Hughes Hall, the Michaelhouse Centre, or Lamma's Land.'
User: 'barnwell'
System: 'There is no restaurant in the Barnwell area in the expensive price range.'
User: 'barnwell'
System: 'Would you like an expensive price range, or you don't care?'
User: 'i am looking for a continental'
System: 'Would you like an expensive price range, or you don't care?'
User: 'expensive price range'
System: 'Would you like an expensive price range, or you don't care?'
User: 'expensive price range'
System: 'Would you like an expensive price range, or you don't care?'
User: 'unitelligible'
System: 'Would you like an expensive price range, or you don't care?'
User: 'expensive price range'
System: 'There is no restaurant in the Barnwell area and serving continental food.'
User: 'thank you good bye'

[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: '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 A]: Cheap

[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: 'background noise'
System: 'What kind of venue are you looking for? For example, a cafe.'
User: 'i am looking for a fast food restaurant with a cheap price range'
System: 'Let me confirm. You are looking for a fastfood venue.'
User: 'yes'
System: 'Burger King, which serves fastfood, is a great restaurant. It's in the cheap price range.'
User: 'whats the phone number'
System: 'The phone number of Burger King is 01223322666. The price for main courses ranges from 1 pound 99 to 6 pounds 79.'
User: 'thank you good bye'

[EX A]:
Cheap