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: 'yes im looking for a cheap restaurant in fen ditton area'
System: 'The Milton Park English and Thai Restaurant, which is in the Fen Ditton part of town, is an outstanding restaurant. It's in the cheap price range.'
User: 'great can i get the phone number and the address please'
System: 'The Milton Park English and Thai Restaurant is on Milton Park Golf Course, Ely Road, Milton and its phone number is 01223864602.'
User: 'okay great 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: 'im looking for a spanish restaurant with any price range and any area'
System: 'La Raza is a great restaurant. It serves spanish food.'
User: 'ok and the address'
System: 'La Raza is located on 4-6, The Basement, Rose Crescent.'
User: 'and the price'
System: 'La Raza is an outstanding venue. The price for main courses ranges from 1 pound 95 to 13 pounds 95 and the entrance for adults is 4 pounds.'
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: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'noise sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'noise looking for a coffee shop serving italian food'
System: 'Are you looking for somewhere near a particular venue? For example, the Gallery at twelve A High Street, the Ruskin Gallery, or the Lammas Land Park.'
User: 'coffee shop with italian food'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Arbury, or Fen Ditton area.'
User: 'reston gallery'
System: 'Caffe Nero, which serves italian food, is an outstanding cafe.'
User: 'fenditton'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Chesterton, or Newnham area.'
User: 'what is the address'
System: 'Caffe Nero is located on 11 Market Street.'
User: 'any area'
System: 'Caffe Nero is an outstanding cafe.'
User: 'what is the post code'
System: 'Caffe Nero is in the area with the postcode CB2 3PA.'
User: 'what is the post code'
System: 'Caffe Nero is in the area with the postcode CB2 3PA.'
User: 'thank you good bye'


SOLUTION:
Expensive