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.

Ex 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: 'im looking for pub that serves food in the moderate price range'
System: 'Are you looking for a venue with an internet connection?'
User: 'ah not necessarily'
System: 'What part of town do you have in mind? For example, Girton.'
User: 'ah any place in cambridge'
System: 'Are you looking for a venue with an internet connection?'
User: 'ah no'
System: 'Are you looking for a venue with a television?'
User: 'no'
System: 'The Anchor is an outstanding pub and it's in the moderate price range.'
User: 'ah whats the address and phone number'
System: 'The Anchor is on Silver Street and its phone number is 01223353554.'
User: 'and what the price range what kind of price range do you have'
System: 'Let me confirm. You don't care about the internet connection. You are looking for a venue.'
User: 'ah thats correct'
System: 'Let me confirm. You don't care about the television and you are looking for a venue.'
User: 'whats the price'
System: 'Let me confirm. You don't care about the television and you are looking for a venue.'
User: 'thats right'
System: 'Let me confirm. You don't care about the internet connection and you are looking for a venue.'
User: 'yes im looking for price'
System: 'Let me confirm. You don't care about the television and you are looking for a venue.'
User: 'yes'
System: 'Let me confirm. You don't care about the television. You are looking for a venue.'
User: 'thank you good bye'


Ex Output:
Moderate


Ex 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: 'yes im looking for a traditional restaurant in the expensive price range'
System: 'What part of town do you have in mind? For example, something in the Chesterton, central, or Romsey area.'
User: 'it doesnt matter'
System: 'The Royal Cambridge Hotel, which serves traditional food, is a great restaurant. It's in the expensive price range.'
User: 'ok can you get get me the address and post code'
System: 'The Royal Cambridge Hotel, which is in the area with the postcode CB2 1PY, is on Trumpington Street. A single room ranges from 91 pounds and to 98 pounds and a cheapest double room is 108 pounds and a family room ranges from 135 pounds and to 169 pounds and the price for main courses ranges from 12 pounds to 18 pounds.'
User: 'thank you good bye'


Ex Output:
Expensive


Ex 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: 'im looking for a mexican or tex mex restaurant in the expensive price range'
System: 'Are you looking for somewhere near a particular venue? For example, Little Saint Mary's, the Scott Polar Museum, or Williams Art and Antiques.'
User: 'no'
System: 'Nanna Mexico, which serves mexican and tex mex food, is an outstanding restaurant. It's in the expensive price range.'
User: 'what is the address phone number and price'
System: 'Nanna Mexico is on 33 Regent Street and its phone number is 01223902150. The price for main courses ranges from 5 pounds 35 to 15 pounds 50 and the price for a cappuccino is 2 pounds 95.'
User: 'thank you good bye'


Ex Output:

Expensive


