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: 'noise sil'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'cheap restaurant castle hill area'
System: 'What type of food would you like? For example, Fastfood, International, or Seafood.'
User: 'doent matter'
System: 'Are you looking for somewhere near a particular venue? For example, Great Saint Mary's Church, Holy Trinity Church, or Old Schools.'
User: 'no'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Girton, or Trumpington area.'
User: 'castle hill'
System: 'What part of town do you have in mind? For example, Addenbrooke's.'
User: 'castle hill'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Cherry Hinton, or King's Hedges area.'
User: 'castle hill'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Chesterton, or New Chesterton area.'
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: 'i want to find an expensive seafood restaurant'
System: 'Loch Fyne, which serves seafood, is an outstanding restaurant. It's in the expensive price range.'
User: 'what is the address and phone number'
System: 'Loch Fyne is located on 37 Trumpington Street and its phone number is 01223902103.'
User: 'what is the cost'
System: 'Loch Fyne is in the riverside part of town.'
User: 'how much does it cost'
System: 'Loch Fyne, which serves seafood, is a great restaurant. It's in the expensive price range.'
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: 'background noise'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'a restaurant in newnham'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'any price'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'i dont care'
System: 'Are you looking for somewhere near a particular venue? For example, Clare College, the Ruskin Gallery, or Trinity College.'
User: 'i dont care'
System: 'What type of food would you like? For example, East asian, Northern european, or Traditional.'
User: 'i dont care'
System: 'Blue Spice is an outstanding restaurant.'
User: 'what is the type of food'
System: 'Let me confirm. You don't care about the food and you are looking for a venue.'
User: 'a restaurant in newnham'
System: 'Let me confirm. You don't care about the food and you are looking for a venue.'
User: 'yes'
System: 'Blue Spice serves indian food. Its phone number is 01223413337. The price for main courses ranges from 12 pounds 50 to 12 pounds 50.'
User: 'is it in newnham'
System: 'Blue Spice is in the Girton part of town.'
User: 'restaurant in newnham'
System: 'Let me confirm. You are looking for a venue in the Newnham area.'
User: 'yes'
System: 'The Red Bull is an outstanding restaurant and it's in the Newnham part of town.'
User: 'what type of food'
System: 'The Red Bull serves italian food.'
User: 'what is the address'
System: 'The Red Bull is located on 11 Barton Road, Newnham.'
User: 'thank you good bye'


SOLUTION:
Don't Care

