Definition: 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: 'background noise'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'japanese'
System: 'Are you looking for a cafe or a restaurant?'
User: 'rest'
System: 'Are you looking for a cafe or a restaurant?'
User: 'restaurant'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'restaurant'
System: 'What part of town do you have in mind? For example, something in the King's Hedges, riverside, or Trumpington area.'
User: 'sil'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Romsey, or Trumpington area.'
User: 'i dont care'
System: 'Are you looking for somewhere near a particular venue? For example, Cambridge Contemporary Art, the Michaelhouse Centre, or Lamma's Land.'
User: 'i dont care'
System: 'Yippee Noodle Bar is a great restaurant and it serves chinese take away and japanese food.'
User: 'no'
System: 'What part of town do you have in mind? For example, something in the Arbury, Castle Hill, or Chesterton area.'
User: 'i dont care'
System: 'What part of town do you have in mind? For example, something in the Fen Ditton, Girton, or King's Hedges area.'
User: 'unintelligible'
System: 'What part of town do you have in mind? For example, Arbury, or Fen Ditton.'
User: 'i dont care oh japanese'
System: 'Yippee Noodle Bar is an outstanding restaurant and it serves chinese take away and japanese food.'
User: 'phone number'
System: 'The phone number of Yippee Noodle Bar is 01223518111.'
User: 'address'
System: 'Yippee Noodle Bar is on 7-9 King Street.'
User: 'thank you good bye'

Output:
Don't Care