Detailed 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.
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: 'i need to find and expensive restaurant in the trumpington area'
System: 'What type of food would you like? For example, East asian, Japanese, or Turkish.'
User: 'unintelligible'
System: 'Are you looking for somewhere near a particular venue? For example, Clare College, Jesus College, or the Ruskin Gallery.'
User: 'no'
System: 'Let me confirm. You don't care about the location and you are looking for a venue.'
User: 'no'
System: 'What type of food would you like? For example, Fastfood.'
User: 'i do not care about the location'
System: 'What type of food would you like? For example, American, or Thai.'
User: 'i dont care'
System: 'The Oak Bistro, which is in the Trumpington part of town, is an outstanding restaurant. It's in the expensive price range.'
User: 'i dont care'
System: 'Let me confirm. You don't care about the food and you are looking for a venue.'
User: 'i need a phone number and a price'
System: 'Let me confirm. You don't care about the food and you are looking for a venue.'
User: 'thats correct'
System: 'Are you looking for a pub or a restaurant?'
User: 'thats correct'
System: 'Are you looking for a pub or a restaurant?'
User: 'i need an expensive restaurant'
System: 'Let me confirm. You don't care about the food and you are looking for a venue.'
User: 'thank you good bye'

A:
Expensive