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 cheap restaurant in the cherry hinton area'
System: 'HK Fusion, which is in the Cherry Hinton part of town, is a great restaurant. It's in the cheap price range.'
User: 'what is the address'
System: 'HK Fusion is located on 21 Burleigh Street.'
User: 'what is the phone number'
System: 'The phone number of HK Fusion is 01223355909.'
User: 'what type of food do they serve'
System: 'HK Fusion serves chinese food.'
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: 'im looking for a restaurant in cherry hinton'
System: 'What kind of price range are you looking for? For example, expensive, or moderate.'
User: 'background noise'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'any price range'
System: 'Are you looking for somewhere near a particular venue? For example, Emmanuel College, the Michaelhouse Centre, or the Whipple Museum.'
User: 'no'
System: 'What type of food would you like? For example, Northern european, Italian, or Middleeastern.'
User: 'any'
System: 'What type of food would you like? For example, pub, American, or Chinese.'
User: 'any'
System: 'What type of food would you like? For example, Fusion, Japanese, or Turkish.'
User: 'american'
System: 'There is no restaurant in the Cherry Hinton area and serving american food.'
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: 'i am looking for a restaurant in kings hedges'
System: 'Are you looking for somewhere near a particular venue? For example, the Botanical Garden* Botanical Gardens, Kettle's Yard, or Lamma's Land.'
User: 'no'
System: 'The Ranch is an outstanding restaurant and it's in the King's Hedges part of town.'
User: 'can you please give me the address phone number and type of food'
System: 'The Ranch is located on 100 Histon Road.'
User: 'the phone number please'
System: 'The phone number of the Ranch is 01223322772. I can't hear you. The phone number of the Ranch is 01223322772.'
User: 'the type of food please'
System: 'The Ranch serves american food.'
User: 'can you please give me the type of food'
System: 'The Ranch is a great restaurant.'
User: 'thank you good bye'


SOLUTION:
Don't Care