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: 'im looking for a restaurant in barnwell'
System: 'The Wheatsheaf, which is in the Barnwell part of town, is an outstanding restaurant.'
User: 'what is the address phone number and price'
System: 'The Wheatsheaf is on Stow Road, Stow-Cum-Quy and its phone number is 01223812196. The price for main courses ranges from 4 pounds to 13 pounds and the price for a cheapest pint of beer is 2 pounds 65.'
User: '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: 'im looking for a spanish restaurant and it should have a cheap price range'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Cherry Hinton, or King's Hedges area.'
User: 'noise'
System: 'What part of town do you have in mind? For example, something in the Chesterton, Fen Ditton, or riverside area.'
User: 'noise'
System: 'What part of town do you have in mind? For example, something in the central, Girton, or riverside area.'
User: 'noise'
System: 'Are you looking for somewhere near a particular venue? For example, Byard Art, Cambridge Contemporary Art, or Corpus Christi.'
User: 'any part of'
System: 'Are you looking for somewhere near a particular venue? For example, Magdalene College, Saint John's College, or Trinity College.'
User: 'no any part of town'
System: 'Let me confirm. You don't care about the area and you are looking for a venue.'
User: 'no'
System: 'La Raza, which serves spanish food, is a great restaurant. It's in the cheap price range.'
User: 'thats correct'
System: 'La Raza is a great venue. The price for main courses ranges from 1 pound 95 to 13 pounds 95 and the entrance for adults is 4 pounds.'
User: 'what is the address'
System: 'La Raza is located on 4-6, The Basement, Rose Crescent.'
User: 'what is the address'
System: 'La Raza is on 4-6, The Basement, Rose Crescent.'
User: 'thank you goodbye'


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 a fusion restaurant in the moderate price range'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, Old Schools, or Trinity College.'
User: 'no'
System: 'Aki Teri, which serves fusion food, is a great restaurant. It's in the moderate price range.'
User: 'what is the address and area'
System: 'Aki Teri is on 3-5 Quayside.'
User: 'what is the area'
System: 'Aki Teri is in the riverside part of town.'
User: 'thank you good bye'


SOLUTION:
Moderate