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: 'i want to find a chinese take away'
System: 'Are you looking for a cafe or a restaurant?'
User: 'and i dont care about the price'
System: 'Are you looking for a cafe or a restaurant?'
User: 'chinese take away restaurant'
System: 'Would you like chinese or X food?'
User: 'chinese'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'i dont care'
System: 'Are you looking for somewhere near a particular venue? For example, the Broughton House, the Folk Museum, or the Museum of Classical Archaeology.'
User: 'ya'
System: 'The J Restaurant is a great restaurant and it serves chinese food.'
User: 'what is the address'
System: 'The J Restaurant is on 86, Regent Street.'
User: 'thank you good bye'

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: 'noise'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'i need to find a restaurant unintelligable i dont care about the price'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'a restaurant'
System: 'What type of food would you like? For example, pub, Fastfood, or Seafood.'
User: 'any kind'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'i do not care about price'
System: 'What type of food would you like? For example, French, Italian, or Japanese.'
User: 'any kind'
System: 'Are you looking for somewhere near a particular venue? For example, the Scott Polar Museum, or The Fitzwilliam Museum.'
User: 'no'
System: 'What part of town do you have in mind? For example, something in the Arbury, Barnwell, or riverside area.'
User: 'i just need to find a restaurant in chesterton'
System: 'There is no restaurant in the Chesterton area and serving french food.'
User: 'thank you goodbye'

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: 'i would like an expensive restaurant in the fen ditton area'
System: 'Let me confirm. You don't care about the area and you are looking for a venue.'
User: 'yes'
System: 'Blue Spice, which is in the expensive price range, is an outstanding restaurant.'
User: 'may i have the address and phone number'
System: 'Blue Spice is on Unit F1, Cambridge Leisure Park, Clifton Way and its phone number is 01223413337.'
User: 'what type of food is served'
System: 'Blue Spice serves indian food.'
User: 'thank you good bye'

Example Output:
Expensive