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: '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: 'i would like to find a greek restaurant i need the phone number and the price'
System: 'What kind of price range are you looking for? For example, free, or moderate.'
User: 'i dont care about the price range'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'i dont care about the price range'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'any'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'none'
System: 'What kind of price range are you looking for? For example, expensive, or moderate.'
User: 'free'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'free'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'thank you goodbye'

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: 'i want to find a expensive restaurant near romsey area'
System: 'The Backstreet Bistro, which is in the Romsey part of town, is a great restaurant. It's in the expensive price range.'
User: 'okay can i get the address the phone number and the postcode'
System: 'The Backstreet Bistro is on 2 Sturton Street. Its phone number is 01223306306. It's in the area with the postcode CB1 2QA.'
User: 'of the restaurant'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, central, or King's Hedges area.'
User: 'i want to find it near romsey area'
System: 'The Backstreet Bistro is a great restaurant and it's in the Romsey part of town. It's in the expensive price range.'
User: 'sil'
System: 'What part of town do you have in mind? For example, something in the Chesterton, Girton, or riverside area.'
User: 'which is nearer to romsey area'
System: 'The Backstreet Bistro is in the Romsey part of town.'
User: 'can i get the address the phone number and the postcode'
System: 'The Backstreet Bistro, which is in the area with the postcode CB1 2QA, is located on 2 Sturton Street. Its phone number is 01223306306.'
User: 'thank you goodbye'


Expensive