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.
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: 'background noise'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'im looking for a restaurant that serves cafe food that is cheap'
System: 'Are you looking for a cafe or a restaurant?'
User: 'restaurant that serves cafe food'
System: 'Are you looking for a cafe or a restaurant?'
User: 'restaurant'
System: 'Subway, which serves cafe food, is a great restaurant. It's in the cheap price range.'
User: 'id like to know their phone number and area'
System: 'The phone number of Subway is 01223461323.'
User: 'what area is it in'
System: 'Subway is in the riverside part of town.'
User: 'alright thank you good bye'

A: 
Cheap