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: 'yeah im looking for a cheap pub'
System: 'The Bakers, which is in the cheap price range, is a great pub.'
User: 'is it in the riverside area'
System: 'The Bakers is a great pub. It's in the riverside part of town. It's in the cheap price range.'
User: 'okay excellent can you give me the address has a tv'
System: 'The Avery has a television and it's in the riverside part of town. It's in the cheap price range. It's an outstanding pub.'
User: 'whats the address please'
System: 'The Avery is on 69-73 Regent Street.'
User: 'thank you goodbye'


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: 'im looking for a restaurant in the trumpington area in the expensive price range'
System: 'The Oak Bistro, which is in the Trumpington part of town, is an outstanding restaurant. It's in the expensive price range.'
User: 'what is its address'
System: 'The Oak Bistro is located on 6 Lensfield Road. The price for main courses ranges from 11 pounds 50 to 17 pounds 75.'
User: 'what type of food does it serve'
System: 'The Oak Bistro serves contemporary food.'
User: '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: 'expensive restaurant in addonbrookes'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'noise sil'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'expensive restaurant'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, Chesterton, or New Chesterton area.'
User: 'addonbrookes'
System: 'What type of food would you like? For example, Fastfood, French, or Middleeastern.'
User: 'unintelligible'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, Cherry Hinton, or Newnham area.'
User: 'sil'
System: 'Are you looking for somewhere near a particular venue? For example, Artspace, Holy Trinity Church, or the Regency Gallery.'
User: 'no'
System: 'What part of town do you have in mind? For example, something in the Arbury, central, or Trumpington area.'
User: 'noise sil'
System: 'Are you looking for a pub or a restaurant?'
User: 'addonbrookes'
System: 'Are you looking for a pub or a restaurant?'
User: 'restaurant'
System: 'Let me confirm. You are looking for a venue in the Girton area.'
User: 'restaurant'
System: 'Let me confirm. You are looking for a venue in the Girton area.'
User: 'no'
System: 'What type of food would you like? For example, Fusion, Greek, or Vegetarian.'
User: 'no'
System: 'What type of food would you like? For example, Continental, Fusion, or Thai.'
User: 'sil'
System: 'What type of food would you like? For example, pub, Indian, or Seafood.'
User: 'greek'
System: 'What type of food would you like? For example, Chinese take away, Italian, or Thai.'
User: 'sea food'
System: 'Loch Fyne is a great restaurant, it serves seafood and it's in the expensive price range.'
User: 'thia'
System: 'Would you like thai or X food?'
User: 'whats the address'
System: 'Would you like thai or X food?'
User: 'the address'
System: 'Would you like thai or X food?'
User: 'sil'
System: 'Would you like thai or X food?'
User: 'thia'
System: 'Loch Fyne is on 37 Trumpington Street.'
User: 'thia'
System: 'The Wrestlers, which serves thai food, is a great restaurant. It's in the expensive price range.'
User: 'whats the phone number'
System: 'The phone number of The Wrestlers is 01223566554.'
User: 'what the phone number'
System: 'The phone number of The Wrestlers is 01223566554.'
User: 'thank you good bye'


SOLUTION:
Expensive