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: 'yes im looking for an expensive restaurant in the romsey area'
System: 'The Backstreet Bistro, which is in the Romsey part of town, is a great restaurant. It's in the expensive price range.'
User: 'whats the address'
System: 'The Backstreet Bistro is on 2 Sturton Street.'
User: 'whats the price'
System: 'The Backstreet Bistro is a great venue. The price for main courses ranges from 10 pounds 95 to 14 pounds 25.'
User: 'thank you goodbye'


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: 'i am looking for a pub and it should have a tv i dont care what price range'
System: 'Would you like an other or true television?'
User: 'i am looking for a pub and it should have a tv'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Girton, or King's Hedges area.'
User: 'i dont care'
System: 'The Baron of Beef has a television and it's an outstanding pub.'
User: 'ok uh does it have internet'
System: 'The Baron of Beef doesn't have any internet connection.'
User: 'ok uh can you please tell me what the address of the pub'
System: 'The Baron of Beef is located on Bridge Street.'
User: 'background noise'
System: 'The Baron of Beef has a television and it's an outstanding pub.'
User: 'ok thank you 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: 'background noise'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'background noise'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'background noise'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'im looking for a greek restaurant and i dont care about the price'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'i dont care'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'i dont care'
System: 'What kind of venue are you looking for? For example, a cafe.'
User: 'greek restaurant'
System: 'What part of town do you have in mind? For example, Arbury, or Barnwell.'
User: 'restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Byard Art, the Book and Print Gallery, or Queens' College.'
User: 'i dont care about the price range'
System: 'The Eraina Taverna, which serves greek food, is a great restaurant.'
User: 'no'
System: 'The Eraina Taverna, which serves greek food, is an outstanding restaurant.'
User: 'whats the phone number and the area'
System: 'The phone number of the Eraina Taverna is 01223902126.'
User: 'and what area is it in'
System: 'The Eraina Taverna is in the central part of town.'
User: 'background noise'
System: 'The Eraina Taverna is a great restaurant.'
User: 'what is the area of the venue'
System: 'The Eraina Taverna is in the central part of town.'
User: 'thank you good bye'


SOLUTION:
Don't Care