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: 'um pub'
System: 'Are you looking for somewhere near a particular venue? For example, the Book and Print Gallery, the Museum of Classical Archaeology, or the Regency Gallery.'
User: 'no'
System: 'The Bakers is an outstanding pub.'
User: 'sil'
System: 'What kind of price range are you looking for? For example, free, or moderate.'
User: 'sil'
System: 'What part of town do you have in mind? For example, central, or Fen Ditton.'
User: 'any'
System: 'What part of town do you have in mind? For example, something in the Chesterton, King's Hedges, or New Chesterton area.'
User: 'any'
System: 'What part of town do you have in mind? For example, something in the Arbury, Chesterton, or Trumpington area.'
User: 'um any part of town'
System: 'The Bakers is a great pub.'
User: 'it doesnt matter'
System: 'Are you looking for a venue with a television?'
User: 'internet'
System: 'The Bakers has an internet connection and it's an outstanding pub.'
User: 'okay um what is the phone number'
System: 'The phone number of The Bakers is 01223304121.'
User: 'sil'
System: 'The Bakers is a great pub.'
User: 'thank you goodbye'


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: 'i need to find and expensive restaurant in the trumpington area'
System: 'What type of food would you like? For example, pub, Fusion, or Traditional.'
User: 'traditional'
System: 'What type of food would you like? For example, International, Thai, or Vegetarian.'
User: 'international'
System: 'There is no restaurant in the Trumpington area and serving international food.'
User: 'expensive restaurant in the trumpington area'
System: 'There is no restaurant serving international food in the expensive price range.'
User: 'restaurant in the trumpington area'
System: 'Would you like an international food, or you don't care?'
User: 'dont care'
System: 'The Oak Bistro is a great restaurant, it's in the Trumpington part of town and it's in the expensive price range.'
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: 'i want to find a expensive restaurant near 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: 'okay can i get the address the phone number and the postcode'
System: 'The Backstreet Bistro is on 2 Sturton Street. Its phone number is 01223306306. It's in the area with the postcode CB1 2QA.'
User: 'of the restaurant'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, central, or King's Hedges area.'
User: 'i want to find it near romsey area'
System: 'The Backstreet Bistro is a great restaurant and it's in the Romsey part of town. It's in the expensive price range.'
User: 'sil'
System: 'What part of town do you have in mind? For example, something in the Chesterton, Girton, or riverside area.'
User: 'which is nearer to romsey area'
System: 'The Backstreet Bistro is in the Romsey part of town.'
User: 'can i get the address the phone number and the postcode'
System: 'The Backstreet Bistro, which is in the area with the postcode CB1 2QA, is located on 2 Sturton Street. Its phone number is 01223306306.'
User: 'thank you goodbye'


SOLUTION:
Expensive

