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: 'hi im looking for a cheap restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Clare Hall.'
User: 'yes im looking for something in romsey area'
System: 'Let me confirm. You are looking for a venue in the Romsey area.'
User: 'romsey area yes'
System: 'What type of food would you like? For example, Drinks and snacks only, Contemporary, or Vegetarian.'
User: 'chinese food'
System: 'There is no restaurant in the Romsey area and serving chinese food.'
User: 'oh and what about mexican food'
System: 'There is no restaurant in the Romsey area and serving chinese food.'
User: 'and mexican food'
System: 'Would you like a romsey area, or you don't care?'
User: 'ya i would like the romsey area'
System: 'There is no restaurant serving mexican and tex mex food in the cheap price range.'
User: 'and i want'
System: 'There is no restaurant serving mexican and tex mex food in the cheap price range.'
User: 'ah what about asian food'
System: 'Would you like a cheap price range, or you don't care?'
User: 'cheap price range'
System: 'Would you like a mexican and tex mex food, or you don't care?'
User: 'please'
System: 'Would you like a mexican and tex mex food, or you don't care?'
User: 'mexican'
System: 'There is no restaurant serving mexican and tex mex food in the cheap price range.'
User: 'ok'
System: 'Can I help you with anything else?'
User: 'thank you good bye'

A: 
Cheap