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.

Example Input: 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: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'restaurant in kings hedges'
System: 'The Ranch is in the King's Hedges part of town.'
User: 'sil'
System: 'The Ranch is in the King's Hedges part of town.'
User: 'ok'
System: 'Can I help you with anything else?'
User: 'what is the address phone number and price of'
System: 'The Ranch is located on 100 Histon Road and its phone number is 01223322772. The price for main courses ranges from 6 pounds to 12 pounds 50.'
User: 'what is the address and phone number and price of the venue'
System: 'The Ranch is on 100 Histon Road. The price for main courses ranges from 6 pounds to 12 pounds 50.'
User: 'thank you and have a good day'
System: 'Let me confirm. You are looking for a venue with an internet connection.'
User: 'thank you and have a good day'
System: 'Are you looking for a pub or a restaurant?'
User: 'noise'
System: 'Are you looking for a pub or a restaurant?'
User: 'thank you and have a good day'

Example Output: Don't Care

Example Input: 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 in the moderate price range'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Arbury, or Newnham area.'
User: 'i dont care'
System: 'The Eagle is a great restaurant, it serves traditional food and it's in the moderate price range.'
User: 'can i get the phone number and post code'
System: 'The phone number of The Eagle is 01223505020 and it's in the area with the postcode CB2 3QN.'
User: 'thank you good bye'

Example Output: Moderate

Example Input: 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: 'noise sil'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'breathing sil'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'noise mexican texmex restaurant'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'mexican'
System: 'Chiquito is an outstanding restaurant and it serves mexican and tex mex food.'
User: 'breathing mexican restaurant'
System: 'What kind of price range are you looking for? For example, expensive, or moderate.'
User: 'texmex'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Chesterton, or Girton area.'
User: 'expensive'
System: 'Chiquito, which serves mexican and tex mex food, is a great restaurant. It's in the expensive price range.'
User: 'chesterton'
System: 'There is no restaurant in the Chesterton area in the expensive price range.'
User: 'thank you and good bye'

Example Output:
Expensive