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: 'The Wheatsheaf, which is in the Barnwell part of town, is an outstanding restaurant.'
User: 'what is the address phone number and price'
System: 'The Wheatsheaf is on Stow Road, Stow-Cum-Quy and its phone number is 01223812196. The price for main courses ranges from 4 pounds to 13 pounds and the price for a cheapest pint of beer is 2 pounds 65.'
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: 'im looking for a cheap coffee shop in the city centre area'
System: 'Clowns, which is a great cafe and an outstanding restaurant, is in the central part of town. It's in the cheap price range.'
User: 'what type of food do they serve'
System: 'Clowns serves italian food.'
User: 'can i get the phone number'
System: 'The phone number of Clowns is 01223355711.'
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: 'noise sil'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'what is a cheap restaurant in addonbrookes'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, New Chesterton, or Trumpington area.'
User: 'addonbrookes'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, Artworks, or Gonville and Caius College.'
User: 'no'
System: 'What part of town do you have in mind? For example, Romsey, or Trumpington.'
User: 'addonbrookes'
System: 'What type of food would you like? For example, Chinese take away, Chinese, or Mediterranean.'
User: 'doenst matter'
System: 'La Raza is a great restaurant and it's in the cheap price range.'
User: 'what is the address'
System: 'Let me confirm. You don't care about the food. You are looking for a venue.'
User: 'what is the address'
System: 'Let me confirm. You don't care about the food and you are looking for a venue.'
User: 'yes'
System: 'Are you looking for a pub or a restaurant?'
User: 'what is a cheap restaurant in addonbrookes'
System: 'La Raza is on 4-6, The Basement, Rose Crescent.'
User: 'what is the post code'
System: 'La Raza is in the area with the postcode CB2 3LL.'
User: 'thank you good bye'


SOLUTION:
Cheap

