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: '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: 'im looking for a chinese take away restaurant in the cheap price range'
System: 'Would you like chinese or X food?'
User: 'chinese'
System: 'Would you like chinese or X food?'
User: 'chinese'
System: 'HK Fusion is an outstanding restaurant, it serves chinese food and it's in the cheap price range.'
User: 'whats the address'
System: 'HK Fusion is on 21 Burleigh Street. The price for main courses ranges from 5 pounds to 8 pounds.'
User: 'whats the phone number'
System: 'The phone number of HK Fusion is 01223355909.'
User: 'whats the area'
System: 'HK Fusion is in the Cherry Hinton part of town.'
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: 'im looking for a traditional restaurant with a moderate price range'
System: 'Are you looking for somewhere near a particular venue? For example, Cherry Hinton Water Play, Great Saint Mary's Church, or the Lynne Strover Gallery.'
User: 'no'
System: 'The Eagle is an outstanding restaurant. It serves traditional food. It's in the moderate price range.'
User: 'uh can i get the phone number and address'
System: 'The Eagle is located on 8 Benet Street. Its phone number is 01223505020.'
User: 'thank you goodbye'

[EX A]:
Moderate