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: 'id like to find a moderately priced restaurant'
System: 'What type of food would you like? For example, French, Spanish, or Traditional.'
User: 'any'
System: 'What type of food would you like? For example, pub, English, or Turkish.'
User: 'turkish'
System: 'Are you looking for somewhere near a particular venue? For example, Corpus Christi, Pembroke College, or Primavera.'
User: 'the new chesterton area'
System: 'Are you looking for a venue in the Chesterton or New Chesterton area?'
User: 'yes'
System: 'Are you looking for a venue in the Chesterton or New Chesterton area?'
User: 'new chesterton'
System: 'There is no restaurant in the New Chesterton area and serving turkish food.'
User: 'i would like to find a moderately priced restaurant in the new chesterton area'
System: 'There is no restaurant in the New Chesterton area and serving turkish food.'
User: 'i would like to find traditional food in the new chesterton area'
System: 'There is no restaurant in the New Chesterton area and serving traditional food.'
User: 'may i restart'
System: 'There is no restaurant in the New Chesterton area and serving traditional food.'
User: 'may i try a different selection'
System: 'Would you like a new chesterton area, or you don't care?'
User: 'new chesterton area'
System: 'Would you like traditional or X food?'
User: 'x foods'
System: 'Would you like traditional or X food?'
User: 'thank you goodbye'


SOLUTION: Moderate

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 price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'noise'
System: 'Are you looking for a venue with a television?'
User: 'moderate'
System: 'Are you looking for a venue with an internet connection?'
User: 'no'
System: 'Are you looking for a venue that allows children?'
User: 'no'
System: 'Are you looking for a pub or a restaurant?'
User: 'no'
System: 'Are you looking for a pub or a restaurant?'
User: 'im looking for a'
System: 'Are you looking for a pub or a restaurant?'
User: 'a restaurant'
System: 'What type of food would you like? For example, Chinese, or Fusion.'
User: 'any food'
System: 'Are you looking for a pub or a restaurant?'
User: 'thank you goodbye'


SOLUTION: Moderate

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 the fen ditton area'
System: 'What type of food would you like? For example, American, Contemporary, or Seafood.'
User: 'i would like ec an expensive restaurant'
System: 'The Riverside Restaurant, which is in the Fen Ditton part of town, is a great restaurant. It's in the expensive price range.'
User: 'whats the address and the price'
System: 'The Riverside Restaurant is located on Cambridge Regional College, Newmarket Road. The price for main courses ranges from 21 pounds 95 to 25 pounds 95.'
User: 'thank you good bye'


SOLUTION:
Expensive