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 coffee shop that serves italian food'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'i dont care'
System: 'Are you looking for somewhere near a particular venue? For example, Kettle's Yard, Old Schools, or Saint Catharine's College.'
User: 'no'
System: 'Caffe Nero, which serves italian food, is an outstanding cafe.'
User: 'what is the address'
System: 'Caffe Nero is on 11 Market Street.'
User: 'what is the price'
System: 'Caffe Nero is an outstanding venue. The price for main courses ranges from 3 pounds 50 to 3 pounds 85 and the price for a cappuccino is 2 pounds 15.'
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: 'breathing sil'
System: 'What kind of venue are you looking for? For example, a cafe.'
User: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'uh i would like to find'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'im looking to find a pub food'
System: 'Are you looking for a cafe or a restaurant?'
User: 'i would like find pub food'
System: 'Are you looking for a cafe or a restaurant?'
User: 'in the moderate price range'
System: 'Are you looking for a cafe or a restaurant?'
User: 'i would like to find pub food'
System: 'Are you looking for a cafe or a restaurant?'
User: 'in the moderate price range'
System: 'Are you looking for a cafe or a restaurant?'
User: 'im looking for pub food'
System: 'Are you looking for a cafe or a restaurant?'
User: 'pub'
System: 'Are you looking for a cafe or a restaurant?'
User: 'yes yes'
System: 'Let me confirm. You are looking for a restaurant.'
User: 'im looking for a pub food restaurant'
System: 'The Lion and Lamb, which serves pub food, is a great restaurant. It's in the moderate price range.'
User: 'in the moderate price range'
System: 'The Lion and Lamb, which serves pub food, is a great restaurant. It's in the moderate price range.'
User: 'whats the address'
System: 'The Lion and Lamb is on High Street, Milton.'
User: 'whats the phone number'
System: 'The phone number of The Lion and Lamb is 01223860202.'
User: 'what area is that in'
System: 'The Lion and Lamb is in the Fen Ditton part of town.'
User: 'ok 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: 'can i find an expensive restaurant near addonbrookes area'
System: 'Are you looking for a cafe or a restaurant?'
User: 'noise sil'
System: 'Are you looking for a pub or a restaurant?'
User: 'im looking for a expensive restaurant'
System: 'What type of food would you like? For example, East asian, American, or Mediterranean.'
User: 'any pub i dont care'
System: 'The Lucky Star is a great restaurant, it's in the Addenbrooke's part of town and it's in the expensive price range.'
User: 'wha i can fi find unintelligible phone number address and of the venue'
System: 'The phone number of the Lucky Star is 01223244277.'
User: 'and the address of the venue'
System: 'The Lucky Star is on Unit.'
User: 'noise sil'
System: 'The Lucky Star is an outstanding restaurant.'
User: 'noise sil'
System: 'The Lucky Star is an outstanding restaurant.'
User: 'noise can i know the address'
System: 'The Lucky Star is on Unit.'
User: 'the lucky star restaurant in a'
System: 'The Lucky Star is a great restaurant.'
User: 'ok can i know the address of the lucky star restaurant'
System: 'The Lucky Star is located on Unit.'
User: 'thank you good bye'


SOLUTION:
Expensive