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.

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: 'What kind of venue are you looking for? For example, a restaurant.'
User: 'im looking for a northern european restuarant in the cheap price range'
System: 'Polonia, which serves northern european food, is a great restaurant. It's in the cheap price range.'
User: 'what is the phone number'
System: 'The phone number of Polonia is 01223902138. The price for main courses ranges from 1 pound 50 to 7 pounds 50.'
User: 'thank you good bye'

Cheap

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 price range are you looking for? For example, cheap, or expensive.'
User: 'expensive'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'expensive'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'continental restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Artworks, the University Botanic Gardens, or Williams Art and Antiques.'
User: 'a continental restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, the Technology Museum, Clare Hall, or King's College.'
User: 'no'
System: 'Alimentum is an outstanding restaurant, it serves continental and french food and it's in the expensive price range.'
User: 'what is the address phone number and postcode'
System: 'Alimentum is located on 152-154 Hills Road, its phone number is 01223413000 and it's in the area with the postcode CB2 8PB.'
User: 'thank you good bye'

Expensive

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, or a pub.'
User: 'background noise'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'background noise'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'hello'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'hello'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'um restaurant'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'i dont care'
System: 'What type of food would you like? For example, Chinese take away, pub, or English.'
User: 'cherry hinton'
System: 'What type of food would you like? For example, East asian, Mediterranean, or Vegetarian.'
User: 'i dont care it doesnt matter'
System: 'Are you looking for a pub or a restaurant?'
User: 'it doesnt matter'
System: 'Are you looking for a pub or a restaurant?'
User: 'a restaurant in cherry hinto'
System: 'Are you looking for somewhere near a particular venue? For example, the Book and Print Gallery, the Folk Museum, or the Regency Gallery.'
User: 'a restaurant in cherry hinton'
System: 'Are you looking for somewhere near a particular venue? For example, the Technology Museum, the Scott Polar Museum, or The Fitzwilliam Museum.'
User: 'sil'
System: 'Are you looking for somewhere near a particular venue? For example, Emmanuel College, Little Saint Mary's, or the Saint Barnabas Press Gallery.'
User: 'cherry hinton'
System: 'Are you looking for somewhere near a particular venue? For example, Christ's College, Clare College, or Saint Catharine's College.'
User: 'no cherry hinton'
System: 'Spice Merchants is an outstanding restaurant. It's in the Cherry Hinton part of town.'
User: 'no no'
System: 'Spice Merchants, which is in the Cherry Hinton part of town, is an outstanding restaurant.'
User: 'no'
System: 'Spice Merchants, which is in the Cherry Hinton part of town, is an outstanding restaurant.'
User: 'and what is the phone number'
System: 'The phone number of Spice Merchants is 01223843436.'
User: 'what is the phone number'
System: 'The phone number of Spice Merchants is 01223843436.'
User: 'well thank you'
System: 'Can I help you with anything else?'
User: 'throat clear thank you'
System: 'Can I help you with anything else?'
User: 'no thank you good bye'
System: 'Spice Merchants is a great restaurant.'
User: 'no thank you good bye'


Don't Care