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 cherry hinton'
System: 'The Dojo Noodle Bar is a great restaurant, it's in the Girton part of town and it's in the cheap price range.'
User: 'im looking for a restaurant in cherry hinton'
System: 'Spice Merchants, which is in the Cherry Hinton part of town, is an outstanding restaurant. It's in the cheap price range.'
User: 'can i get the phone number and the address'
System: 'Spice Merchants is located on 60 Trumpington Road and its phone number is 01223843436.'
User: 'thank you goodbye'


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 japanese restaurant in the moderate price range'
System: 'Yippee Noodle Bar is an outstanding restaurant. It serves chinese take away and japanese food. It's in the moderate price range.'
User: 'whats the price of it'
System: 'Yippee Noodle Bar is a great venue. The price for main courses ranges from 7 pounds 30 to 11 pounds 40.'
User: 'whats the phone number'
System: 'The phone number of Yippee Noodle Bar is 01223518111.'
User: 'thank you goodbye'


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: 'yes im looking for a cheap coffee shop'
System: 'Are you looking for somewhere near a particular venue? For example, the Botanic Garden, the Saint Barnabas Press Gallery, or the Whipple Museum of the History of Science.'
User: 'any area'
System: 'Clowns, which is a great cafe and an outstanding restaurant, is in the cheap price range.'
User: 'yes can i get the address and the price then'
System: 'Clowns is located on 54 King Street. The price for main courses ranges from 5 pounds to 11 pounds and the price for a cappuccino is 1 pound 50.'
User: 'ok thank you goodbye'


SOLUTION:
Cheap