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 restaurant in chesterton in any price range'
System: 'Twenty-four is an outstanding restaurant and it's in the Chesterton part of town.'
User: 'whats the address and postcode'
System: 'Twenty-four, which is in the area with the postcode CB4 0FN, is on 24 Cambridge Science Park, Milton Road.'
User: 'thank you good bye'

[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: 'restaurant'
System: 'What kind of price range are you looking for? For example, expensive, or moderate.'
User: 'i dont care'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'a restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Emmanuel College, Pembroke College, or the Lammas Land Park.'
User: 'kings hedges'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, Fen Ditton, or Girton area.'
User: 'kings hedges'
System: 'The Ranch, which is in the King's Hedges part of town, is an outstanding restaurant.'
User: 'address and postcode'
System: 'The Ranch is on 100 Histon Road and it's in the area with the postcode CB4 3JP.'
User: 'repeat'
System: 'The Ranch is a great restaurant.'
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: 'im looking for a cheap restaurant in the addenbrookes area'
System: 'The Peking Restaurant is a great restaurant, it's in the Addenbrooke's part of town and it's in the cheap price range.'
User: 'ah whats the address and postcode'
System: 'The Peking Restaurant, which is in the area with the postcode CB2 8NX, is on Unit 3, The Belvedere, Homerton Street.'
User: 'thank you good bye'

[EX A]:
Cheap