TASK 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.
PROBLEM: 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: 'international restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, the Folk Museum, Old Schools, or the Saint Barnabas Press Gallery.'
User: 'no'
System: 'Giraffe, which serves international food, is an outstanding restaurant.'
User: 'what is the address'
System: 'Giraffe is located on Christ's Lane.'
User: 'what are the prices at giraffe'
System: 'Giraffe is an outstanding venue. The price for main courses ranges from 6 pounds 95 to 14 pounds 95 and the price for a cappuccino is 2 pounds 10.'
User: 'thank you and good bye'


SOLUTION: Don't Care

PROBLEM: 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: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe.'
User: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe.'
User: 'im looking for a cheap restaurant'
System: 'What type of food would you like? For example, American, Contemporary, or Italian.'
User: 'restaurant'
System: 'What type of food would you like? For example, Indian, Mediterranean, or Turkish.'
User: 'restaurant'
System: 'What type of food would you like? For example, Cafe food, Contemporary, or Japanese.'
User: 'contemporary'
System: 'All Bar One, which serves contemporary food, is an outstanding restaurant. It's in the cheap price range.'
User: 'is it in the fen ditton area'
System: 'Are you looking for somewhere near a particular venue? For example, Christ's College, the Gallery at twelve A High Street, or Gonville and Caius College.'
User: 'fen ditton area'
System: 'All Bar One is the only restaurant in the cheap price range that serves contemporary food.'
User: 'what is the phone number'
System: 'The phone number of All Bar One is 01223371081.'
User: 'what is the address'
System: 'All Bar One is on 36 Saint Andrews Street.'
User: 'thank you good bye'


SOLUTION: Cheap

PROBLEM: 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: 'can you give me a restaurant in kings hedges'
System: 'The Ranch, which is in the King's Hedges part of town, is a great restaurant.'
User: 'what is its address'
System: 'The Ranch is located on 100 Histon Road.'
User: 'sil'
System: 'The Ranch is a great restaurant.'
User: 'could you please give its address'
System: 'The Ranch is located on 100 Histon Road.'
User: 'what is the price range'
System: 'The Ranch is in the moderate price range. The price for main courses ranges from 6 pounds to 12 pounds 50.'
User: 'is it family friendly'
System: 'The Ranch is an outstanding restaurant.'
User: 'thank you good bye'


SOLUTION:
Don't Care