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: 'cough'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'restaurant'
System: 'What type of food would you like? For example, Mexican and Tex Mex, Continental, or Indian.'
User: 'dont care'
System: 'What type of food would you like? For example, Cafe food, Contemporary, or Spanish.'
User: 'i dont care'
System: 'Are you looking for somewhere near a particular venue? For example, the Gallery at twelve A High Street, The Fitzwilliam Museum, or Trinity College.'
User: 'sil'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, the Michaelhouse Centre, or the Lammas Land Park.'
User: 'city cent'
System: 'La Raza is a great restaurant and it's in the central part of town.'
User: 'city center'
System: 'La Raza, which is in the central part of town, is an outstanding restaurant.'
User: 'whats the address'
System: 'La Raza is on 4-6, The Basement, Rose Crescent.'
User: 'address'
System: 'La Raza is on 4-6, The Basement, Rose Crescent.'
User: 'price'
System: 'La Raza is an outstanding venue. The price for main courses ranges from 1 pound 95 to 13 pounds 95 and the entrance for adults is 4 pounds.'
User: 'price'
System: 'La Raza is a great venue. The price for main courses ranges from 1 pound 95 to 13 pounds 95 and the entrance for adults is 4 pounds.'
User: 'thank you goodbye'

[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: 'a pub in the moderately price range'
System: 'The Alma, which is in the moderate price range, is a great pub.'
User: 'whats the address'
System: 'The Alma is located on Russell Court.'
User: 'whats the phone number'
System: 'The phone number of The Alma is 01223316722.'
User: 'whats the post code'
System: 'The Alma is in the area with the postcode CB2 1HW.'
User: 'thank you goodbye'

[EX A]: Moderate

[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: 'i want to find a moderately priced restaurant'
System: 'Would you like a venue with a free or moderate price range?'
User: 'moderate'
System: 'What type of food would you like? For example, Mexican and Tex Mex, Northern european, or Middleeastern.'
User: 'i do not care'
System: 'Caffe Uno, which is in the moderate price range, is a great restaurant.'
User: 'it should be in the barnwell area'
System: 'The Wheatsheaf, which is in the Barnwell part of town, is a great restaurant. It's in the moderate price range.'
User: 'what is the address'
System: 'The Wheatsheaf is located on Stow Road, Stow-Cum-Quy. The price for main courses ranges from 4 pounds to 13 pounds and the price for a cheapest pint of beer is 2 pounds 65.'
User: 'what is the phone number and postcode'
System: 'The phone number of the Wheatsheaf is 01223812196 and it's in the area with the postcode CB5 9AD.'
User: 'thank you goodbye'

[EX A]:
Moderate