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.

[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: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'looking for a cheap pub breathing'
System: 'The Baron of Beef, which is in the cheap price range, is a great pub.'
User: 'whats the address'
System: 'The Baron of Beef is on Bridge Street.'
User: 'thanks goodbye'

[A]: Cheap


[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: 'i want to find a pub food restaurant and it should be in the moderate price range'
System: 'Are you looking for somewhere near a particular venue? For example, Artworks, the Book and Print Gallery, or the Whipple Museum.'
User: 'no'
System: 'The Lion and Lamb is an outstanding restaurant. It serves pub food. It's in the moderate price range.'
User: 'can i get the address phone number and the area'
System: 'The Lion and Lamb is on High Street, Milton and its phone number is 01223860202.'
User: 'thank you good bye'

[A]: Moderate


[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: 'cough'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'im loo'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'restaurant im looking for a mexican'
System: 'What part of town do you have in mind? For example, something in the Chesterton, Fen Ditton, or New Chesterton area.'
User: 'mexican tex mex restaurant'
System: 'What part of town do you have in mind? For example, Barnwell, or New Chesterton.'
User: 'chesterton is fine uh mexican'
System: 'There is no restaurant in the Chesterton area and serving mexican and tex mex food.'
User: 'ches'
System: 'Can I help you with anything else?'
User: 'ches chesterton is fine'
System: 'Twenty-four, which is in the Chesterton part of town, is an outstanding restaurant.'
User: 'yes mexican tex mex restaurant'
System: 'Twenty-four is located on 24 Cambridge Science Park, Milton Road.'
User: 'and it should have expensive price range'
System: 'Twenty-four is an outstanding venue. The price for main courses ranges from 6 pounds to 15 pounds.'
User: 'and i want another phone number and postcode'
System: 'The phone number of Twenty-four is 01223395800 and it's in the area with the postcode CB4 0FN.'
User: 'thats fine phone number and post'
System: 'There is no pub in the Chesterton area.'
User: 'got it thank you'
System: 'Can I help you with anything else?'
User: 'thank you and goodbye'

[A]:
Expensive