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.

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 want to find a american restaurant'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'i do not care'
System: 'What part of town do you have in mind? For example, Arbury, or Chesterton.'
User: 'i do not care'
System: 'Would you like a girton area, or you don't care?'
User: 'i do not care'
System: 'Gourmet Burger , which serves american food, is an outstanding restaurant.'
User: 'what is the phone number and address'
System: 'Gourmet Burger  is on 43-45 Regent Street and its phone number is 01223312598.'
User: 'thank you good bye'

Don't Care

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: 'noise'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'noise'
System: 'Are you looking for a venue with a television?'
User: 'moderate'
System: 'Are you looking for a venue with an internet connection?'
User: 'no'
System: 'Are you looking for a venue that allows children?'
User: 'no'
System: 'Are you looking for a pub or a restaurant?'
User: 'no'
System: 'Are you looking for a pub or a restaurant?'
User: 'im looking for a'
System: 'Are you looking for a pub or a restaurant?'
User: 'a restaurant'
System: 'What type of food would you like? For example, Chinese, or Fusion.'
User: 'any food'
System: 'Are you looking for a pub or a restaurant?'
User: 'thank you goodbye'

Moderate

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 just looking for a cheap pub'
System: 'The Baron of Beef is an outstanding pub and it's in the cheap price range.'
User: 'ah does it have a tv'
System: 'The Baron of Beef, which has a television, is in the cheap price range. It's a great pub.'
User: 'and whats the address'
System: 'The Baron of Beef is located on Bridge Street.'
User: 'is that the only address'
System: 'The Baron of Beef is located on Bridge Street.'
User: 'where on bridge street is it located'
System: 'The Baron of Beef is a great pub.'
User: 'does it have a more specific address'
System: 'The Baron of Beef is located on Bridge Street.'
User: 'thank you goodbye'


Cheap