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: 'im looking for a spanish restaurant'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'a cheap spanish restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, the Book and Print Gallery, the Ruskin Gallery, or the Whipple Museum of the History of Science.'
User: 'no'
System: 'La Raza, which serves spanish food, is an outstanding restaurant. It's in the cheap price range.'
User: 'sil'
System: 'La Raza, which serves spanish food, is a great restaurant. It's in the cheap price range.'
User: 'no'
System: 'La Raza is a great restaurant and it serves spanish food. It's in the cheap price range.'
User: 'whats the phone number'
System: 'The phone number of La Raza is 01223464550.'
User: 'what is the phone number'
System: 'The phone number of La Raza is 01223464550.'
User: 'thank you goodbye'


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: 'i want to find a pub food restaurant and it should be in a moderate price range'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Fen Ditton, or New Chesterton area.'
User: 'i do not care about the area'
System: 'The Lion and Lamb is a great restaurant, it serves pub food and it's in the moderate price range.'
User: 'can i get the phone number with the address and the area'
System: 'The Lion and Lamb is located on High Street, Milton and its phone number is 01223860202.'
User: 'thank you goodbye'


SOLUTION:
Moderate