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: 'i need an expensive restaurant in the addenbrookes area'
System: 'Would you like a venue with a cheap or expensive price range?'
User: 'expensive'
System: 'What type of food would you like? For example, Cafe food, or Fusion.'
User: 'fusion'
System: 'Would you like a venue with an expensive pricerange or with no entrance fee?'
User: 'expensive'
System: 'What type of food would you like? For example, East asian, Fusion, or Spanish.'
User: 'fusion'
System: 'What type of food would you like? For example, International, Spanish, or Turkish.'
User: 'international'
System: 'There is no restaurant in the Addenbrooke's area and serving international food.'
User: 'fusion'
System: 'Would you like an addenbrooke's area, or you don't care?'
User: 'addenbrookes'
System: 'Would you like an international food, or you don't care?'
User: 'i dont care'
System: 'What part of town do you have in mind? For example, something in the central, Romsey, or Trumpington area.'
User: 'addenbrookes'
System: 'What part of town do you have in mind? For example, something in the central, Newnham, or Trumpington area.'
User: 'central'
System: 'Blue Spice, which is in the expensive price range, is an outstanding restaurant.'
User: 'thank you goodbye'


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: 'im looking for a coffee in the city center'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'i dont care what price range'
System: 'What type of food would you like? For example, American, French, or Seafood.'
User: 'it does not matter'
System: 'What type of food would you like? For example, Mexican and Tex Mex, Indian, or Italian.'
User: 'i dont care'
System: 'Carringtons, which is an outstanding cafe and a great restaurant, is in the central part of town.'
User: 'what type of food does it serve'
System: 'Let me confirm. You don't care about the food and you are looking for a venue.'
User: 'ah what type of food does the venue serve'
System: 'Let me confirm. You don't care about the food and you are looking for a venue.'
User: 'no i want to know what type of food this cafe serves'
System: 'Carringtons serves cafe food and english food.'
User: 'ok what is the address'
System: 'Carringtons is on 23 Market Street.'
User: 'ok 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: 'noise sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'i want to find a sea food restaurant'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, central, or New Chesterton area.'
User: 'oh which is which is an expensive price range'
System: 'Loch Fyne is a great restaurant, it serves seafood and it's in the expensive price range.'
User: 'i dont care about it'
System: 'Loch Fyne, which serves seafood, is a great restaurant. It's in the expensive price range.'
User: 'can i know can i get the address the phone number'
System: 'Loch Fyne is located on 37 Trumpington Street and its phone number is 01223902103. The price for main courses ranges from 9 pounds to 20 pounds.'
User: 'can i get the address the phone number and the price'
System: 'Loch Fyne is located on 37 Trumpington Street and its phone number is 01223902103. The price for main courses ranges from 9 pounds to 20 pounds.'
User: 'thank you good bye'


SOLUTION:
Expensive