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 cheap restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Churchill College, the Museum of Archaelogy and Anthropology, or the People's Portraits Exhibition.'
User: 'no'
System: 'La Raza, which is in the cheap price range, is a great restaurant.'
User: 'is there something in the girton area'
System: 'La Raza is in the central part of town.'
User: 'what is the area'
System: 'La Raza is in the central part of town.'
User: 'can i unintelligible'
System: 'La Raza is a great restaurant.'
User: 'im looking for a cheap restaurant in the girton area'
System: 'The Dojo Noodle Bar is a great restaurant and it's in the Girton part of town. It's in the cheap price range.'
User: 'could i get the phone number'
System: 'The phone number of the Dojo Noodle Bar is 01223363471.'
User: 'what is the postcode'
System: 'The Dojo Noodle Bar is in the area with the postcode CB2 1RQ.'
User: 'thank you good bye'


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: 'background noise'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'i would like a cheap restaurant in the fen ditton area'
System: 'The Milton Park English and Thai Restaurant, which is in the Fen Ditton part of town, is a great restaurant. It's in the cheap price range.'
User: 'may i have the phone number and address'
System: 'The Milton Park English and Thai Restaurant is on Milton Park Golf Course, Ely Road, Milton and its phone number is 01223864602.'
User: 'thank you good bye'


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 cheap restaurant in the girton area'
System: 'The Dojo Noodle Bar is an outstanding restaurant, it's in the Girton part of town and it's in the cheap price range.'
User: 'whats the address'
System: 'The Dojo Noodle Bar is located on Miller's Yard.'
User: 'whats the phone number'
System: 'The phone number of the Dojo Noodle Bar is 01223363471.'
User: 'what what type of food do they have'
System: 'The Dojo Noodle Bar serves fusion food.'
User: 'thank you goodbye'


SOLUTION:
Cheap