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: 'breathing'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'expensive restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Corpus Christi, Old Schools, or the Ruskin Gallery.'
User: 'romsey area'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Chesterton, or riverside area.'
User: 'romsey are'
System: 'Are you looking for a venue in the Girton or Romsey area?'
User: 'romsey'
System: 'The Backstreet Bistro, which is in the Romsey part of town, is a great restaurant. It's in the expensive price range.'
User: 'background noise'
System: 'The Backstreet Bistro, which is in the Romsey part of town, is a great restaurant. It's in the expensive price range.'
User: 'phone number and postcode'
System: 'The phone number of the Backstreet Bistro is 01223306306 and it's in the area with the postcode CB1 2QA.'
User: 'phone number and postcode'
System: 'The phone number of the Backstreet Bistro is 01223306306 and it's in the area with the postcode CB1 2QA.'
User: 'thank you good bye'


SOLUTION: Expensive

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 moderately priced restaurant in kings hedges'
System: 'The Ranch, which is in the King's Hedges part of town, is an outstanding restaurant. It's in the moderate price range.'
User: 'what is the address and phone number'
System: 'The Ranch is on 100 Histon Road. Its phone number is 01223322772.'
User: 'thank you good bye'


SOLUTION: Moderate

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 traditional restaurant in the medium price range'
System: 'What kind of price range are you looking for? For example, free, or moderate.'
User: 'moderate'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Girton, or Romsey area.'
User: 'any part of town'
System: 'Are you looking for somewhere near a particular venue? For example, Jesus College, the Regency Gallery, or Sidney Sussex College.'
User: 'regency gallery'
System: 'Would you like a venue with a cheap or moderate price range?'
User: 'moderate'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, the Gallery at twelve A High Street, or The Fitzwilliam Museum.'
User: 'fitzwilliam museum'
System: 'Are you looking for somewhere near a particular venue? For example, the Book and Print Gallery, Old Schools, or the Scott Polar Museum.'
User: 'fitzwilliam museum'
System: 'Are you looking for somewhere near a particular venue? For example, Cafe Jello, Christ's College, or Wandlebury Country Park.'
User: 'christs college'
System: 'Are you looking for somewhere near a particular venue? For example, the Museum of Archaelogy and Anthropology, Queens' College, or Primavera.'
User: 'christs college'
System: 'Are you looking for somewhere near a particular venue? For example, Cambridge Contemporary Art, Holy Trinity Church, or Trinity College.'
User: 'christs college'
System: 'Are you looking for somewhere near a particular venue? For example, the Botanic Gardens, the Folk Museum, or Gonville and Caius College.'
User: 'christs college'
System: 'Are you looking for somewhere near a particular venue? For example, Cherry Hinton Water Play, Corpus Christi, or the Regency Gallery.'
User: 'thank you and goodbye'


SOLUTION:
Moderate