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: 'im looking for a coffee shop in girton i dont care about the price range i want to know the address phone number and type of food'
System: 'The Auntie's Tea Shop is a great cafe and it's in the Girton part of town.'
User: 'what is the address phone number and type of food'
System: 'The Auntie's Tea Shop is on 1 Saint Mary's Passage and its phone number is 01223315641. The price for main courses ranges from 3 pounds to 8 pounds and the price for a cappuccino is 2 pounds.'
User: 'what is the type of food'
System: 'The Auntie's Tea Shop serves english food.'
User: 'thank you goodbye'

[EX A]: 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: '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'

[EX A]: 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: 'i am looking for middle eastern restaurant'
System: 'Al Casbah is a great restaurant and it serves mediterranean and middleeastern food.'
User: 'what is the price range'
System: 'Al Casbah is in the moderate price range.'
User: 'what is the phone number'
System: 'The phone number of Al Casbah is 01223579500.'
User: 'what is the address'
System: 'Al Casbah is on 62 Mill Road.'
User: 'thank you good bye'

[EX A]:
Moderate