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: 'im looking for a restaurant in barnwell'
System: 'What type of food would you like? For example, Northern european, English, or Greek.'
User: 'i dont care'
System: 'The Wheatsheaf is an outstanding restaurant and it's in the Barnwell part of town.'
User: 'what is the address'
System: 'The Wheatsheaf is on Stow Road, Stow-Cum-Quy.'
User: 'what is the phone number'
System: 'The phone number of the Wheatsheaf is 01223812196.'
User: '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: 'id like to find a contemporary restaurant'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Fen Ditton, or Trumpington area.'
User: 'it should have a cheap price range'
System: 'All Bar One, which serves contemporary food, is a great restaurant. It's in the cheap price range.'
User: 'what is the phone number'
System: 'The phone number of All Bar One is 01223371081. The price for main courses ranges from 7 pounds 95 to 12 pounds 95 and the price for a glass of wine ranges from 2 pounds 85 to 6 pounds 95.'
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: 'um im looking for a coffee shop in griton'
System: 'What type of food would you like? For example, Fastfood, Greek, or Middleeastern.'
User: 'um a coffee shop'
System: 'What type of food would you like? For example, Greek, International, or Middleeastern.'
User: 'international'
System: 'There is no cafe serving international food.'
User: 'uh'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, Girton, or King's Hedges area.'
User: 'im looking for a coffee shop'
System: 'There is no cafe serving international food.'
User: 'thank you good bye'


SOLUTION:
Don't Care

