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.

Let me give you an example: 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: 'im looking for a moderately priced coffee shop'
System: 'Are you looking for somewhere near a particular venue? For example, Cambridge Contemporary Art, Great Saint Mary's Church, or Primavera.'
User: 'no im not'
System: 'Cafe Eleven, which is in the moderate price range, is an outstanding cafe.'
User: 'can i get the phone number and the postcode'
System: 'The phone number of Cafe Eleven is 01223369157. It's in the area with the postcode CB1 1DG.'
User: 'thank you goodbye'

The answer to this example can be: Moderate
Here is why: The user mentions that they are looking for a moderately priced coffee shop.

OK. solve this:
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: 'background noise'
System: 'Can I help you with anything else?'
User: 'cheap restaurant'
System: 'Let me confirm. You are looking for a venue in the cheap price range.'
User: 'unintelligible'
System: 'Let me confirm. You are looking for a venue in the cheap price range.'
User: 'yes'
System: 'Let me confirm. You don't care about the location and you are looking for a venue.'
User: 'yes'
System: 'La Raza is a great restaurant and it's in the cheap price range.'
User: 'romsey area'
System: 'The Royal Standard, which is in the Romsey part of town, is an outstanding restaurant. It's in the cheap price range.'
User: 'background noise rom'
System: 'There is no pub in the Romsey area.'
User: 'phone number'
System: 'The Baron of Beef is an outstanding pub and it's in the cheap price range.'
User: 'phone number'
System: 'The phone number of The Baron of Beef is 01223505022.'
User: 'cheap restaurant in the romsey area'
System: 'The Royal Standard is a great restaurant, it's in the Romsey part of town and it's in the cheap price range.'
User: 'background noise'
System: 'There is no pub in the Romsey area.'
User: 'phone number'
System: 'The phone number of the Royal Standard is 01223902175.'
User: 'phone number'
System: 'The phone number of the Royal Standard is 01223902175.'
User: 'type of food'
System: 'The Baron of Beef, which is in the cheap price range, is an outstanding pub.'
User: 'type of food'
System: 'The Baron of Beef, which is in the cheap price range, is a great pub.'
User: 'thank you good bye'

Answer:
Cheap