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: 'imlooking for an international restaurant in the moderate price range'
System: 'Giraffe, which serves international food, is an outstanding restaurant. It's in the moderate price range.'
User: 'whats the phone number and postcode'
System: 'The phone number of Giraffe is 01223300707 and it's in the area with the postcode CB1 1NP.'
User: 'thank you good bye'


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: 'clicking sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'im looking expensive unitelligible'
System: 'There is no pub in the expensive price range.'
User: 'im looking for expensive ah'
System: 'There is no pub in the expensive price range.'
User: 'an expensive restaurant'
System: 'What type of food would you like? For example, Northern european, Fastfood, or Turkish.'
User: 'im looking for a restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Corpus Christi, Hughes Hall, or Kettle's Yard.'
User: 'oh i dont care'
System: 'Blue Spice, which is in the expensive price range, is an outstanding restaurant.'
User: 'i dont care'
System: 'What type of food would you like? For example, East asian, English, or Fastfood.'
User: 'i dont care'
System: 'Blue Spice is an outstanding restaurant and it's in the expensive price range.'
User: 'is it in the romsey area'
System: 'The Backstreet Bistro, which is in the Romsey part of town, is a great restaurant. It's in the expensive price range.'
User: 'exellent can i get the address phone number and type of food please'
System: 'The Backstreet Bistro is located on 2 Sturton Street and its phone number is 01223306306.'
User: 'and the type of food it serves please'
System: 'The Backstreet Bistro is an outstanding restaurant.'
User: 'what type of food to they serve'
System: 'The Backstreet Bistro serves contemporary food. It serves english food.'
User: 'ok 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: 'im looking for a restaurant in fen ditton'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'it doesnt matter'
System: 'What part of town do you have in mind? For example, something in the Fen Ditton, King's Hedges, or Trumpington area.'
User: 'fen ditton'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Barnwell, or New Chesterton area.'
User: 'the fen ditton area'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, the Botanical Garden* Botanical Gardens, or Williams Art and Antiques.'
User: 'nowhere specific'
System: 'The Lion and Lamb, which is in the Fen Ditton part of town, is a great restaurant.'
User: 'what is the address'
System: 'The Lion and Lamb is on High Street, Milton.'
User: 'what is the phone number'
System: 'The phone number of The Lion and Lamb is 01223860202.'
User: 'thank you good bye'


SOLUTION:
Don't Care