Instructions: 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.
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 price range are you looking for? For example, expensive.'
User: 'im looking for a seafood restaurant and it should have expensive price range'
System: 'Loch Fyne is a great restaurant, it serves seafood and it's in the expensive price range.'
User: 'i need to know the address phone number and price of the venue'
System: 'Loch Fyne is on 37 Trumpington Street. Its phone number is 01223902103. The price for main courses ranges from 9 pounds to 20 pounds.'
User: 'thank you goodbye'

Output:
Expensive