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 trumpington'
System: 'Are you looking for somewhere near a particular venue? For example, Great Saint Mary's Church, Magdalene College, or Saint Catharine's College.'
User: 'no'
System: 'The Oak Bistro, which is in the Trumpington part of town, is an outstanding restaurant.'
User: 'what is its address'
System: 'The Oak Bistro is on 6 Lensfield Road.'
User: 'sil'
System: 'The Oak Bistro is a great restaurant.'
User: 'what is its price'
System: 'The Oak Bistro is an outstanding venue. The price for main courses ranges from 11 pounds 50 to 17 pounds 75.'
User: 'what is its phone number'
System: 'The phone number of The Oak Bistro is 01223323361.'
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 pub'
System: 'Are you looking for a venue with a television?'
User: 'no'
System: 'Are you looking for a venue with an internet connection?'
User: 'yes'
System: 'The Bakers, which has an internet connection, is an outstanding pub.'
User: 'does it allow children'
System: 'The Bakers allows children with an internet connection and it's an outstanding pub.'
User: 'what is the address'
System: 'The Bakers is located on 176 East Road.'
User: 'what is the phone number'
System: 'The phone number of The Bakers is 01223304121.'
User: 'what is the area'
System: 'The Bakers is in the riverside part of town.'
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: 'restaurant'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'expensive romsey area'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'expensive'
System: 'The Backstreet Bistro is a great restaurant, it's in the Romsey part of town and it's in the expensive price range.'
User: 'address'
System: 'The Backstreet Bistro is located on 2 Sturton Street.'
User: 'phone number'
System: 'The phone number of the Backstreet Bistro is 01223306306.'
User: 'postcode'
System: 'The Backstreet Bistro is in the area with the postcode CB1 2QA.'
User: 'thank you good bye'


SOLUTION:
Expensive