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: 'looking for a spanish restaurant'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'i dont care'
System: 'Are you looking for somewhere near a particular venue? For example, the Folk Museum, Downing College, or Emmanuel College.'
User: 'i dont care'
System: 'La Raza, which serves spanish food, is a great restaurant.'
User: 'may i have the address and phone number please'
System: 'La Raza is located on 4-6, The Basement, Rose Crescent. Its phone number is 01223464550.'
User: 'thank you good bye'

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: 'im looking for a fusion restaurant and it should have moderate price range'
System: 'Aki Teri, which serves fusion food, is a great restaurant. It's in the moderate price range.'
User: 'ok can i have the phone number please'
System: 'The phone number of Aki Teri is 01223323888.'
User: 'thank you and could i have the price'
System: 'Aki Teri is located on 3-5 Quayside. The price for main courses ranges from 8 pounds 80 to 11 pounds 80.'
User: 'thank you good bye'

Moderate

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: 'im looking for a restaurant in the castlehill area'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'a cheap restaurant'
System: 'What type of food would you like? For example, Northern european, American, or Mediterranean.'
User: 'dont care'
System: 'Are you looking for somewhere near a particular venue? For example, Christ's College, Corpus Christi, or The Fitzwilliam Museum.'
User: 'dont care'
System: 'La Raza, which is in the cheap price range, is an outstanding restaurant.'
User: 'whats the address'
System: 'La Raza is located on 4-6, The Basement, Rose Crescent.'
User: 'whats the phone number'
System: 'The phone number of La Raza is 01223464550.'
User: 'whats the price'


Cheap