You will be given a definition of a task first, then some input of the task.
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.

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'

Output:
Expensive