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 an expensive restaurant in the castle hill area'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Girton, or Romsey area.'
User: 'castle hill'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, Romsey, or Trumpington area.'
User: 'castle hill area'
System: 'Are you looking for somewhere near a particular venue? For example, the Technology Museum, the Botanic Garden, or Old Schools.'
User: 'no'
System: 'What type of food would you like? For example, Chinese, or Japanese.'
User: 'ah doesnt matter'
System: 'Blue Spice, which is in the expensive price range, is an outstanding restaurant.'
User: 'ah whats the phone number and post code'
System: 'Let me confirm. You don't care about the food. You are looking for a venue.'
User: 'thats right'
System: 'Are you looking for a pub or a restaurant?'
User: 'ah restaurant expensive restaurant'
System: 'The phone number of Blue Spice is 01223413337 and it's in the area with the postcode CB1 7DY.'
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: 'noise'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'i need to find a restaurant unintelligable i dont care about the price'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'a restaurant'
System: 'What type of food would you like? For example, pub, Fastfood, or Seafood.'
User: 'any kind'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'i do not care about price'
System: 'What type of food would you like? For example, French, Italian, or Japanese.'
User: 'any kind'
System: 'Are you looking for somewhere near a particular venue? For example, the Scott Polar Museum, or The Fitzwilliam Museum.'
User: 'no'
System: 'What part of town do you have in mind? For example, something in the Arbury, Barnwell, or riverside area.'
User: 'i just need to find a restaurant in chesterton'
System: 'There is no restaurant in the Chesterton area and serving french food.'
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 want to find a restaurant in kings hedges'
System: 'What type of food would you like? For example, Mexican and Tex Mex, French, or Seafood.'
User: 'it doesnt matter'
System: 'The Ranch is an outstanding restaurant. It's in the King's Hedges part of town.'
User: 'i need the address and the postcode please'
System: 'The Ranch, which is in the area with the postcode CB4 3JP, is located on 100 Histon Road.'
User: 'thank you goodbye'


SOLUTION:
Don't Care