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 in the girton area'
System: 'The Dojo Noodle Bar, which is in the Girton part of town, is an outstanding restaurant. It's in the cheap price range.'
User: 'what is 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: 'im looking for a moderately priced pub and i dont care if children are allowed'
System: 'Are you looking for a venue with a television?'
User: 'no'
System: 'The Anchor, which allows children, is in the moderate price range. It's a great pub.'
User: 'can i have the address phone number and postcode'
System: 'The Anchor, which is in the area with the postcode CB3 9EL, is on Silver Street. Its phone number is 01223353554.'
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: 'im looking for a pub food restaurant'
System: 'What kind of price range are you looking for? For example, free, or moderate.'
User: 'cheap'
System: 'Are you looking for somewhere near a particular venue? For example, Churchill College, or Wandlebury Country Park.'
User: 'cough'
System: 'Let me confirm. You don't care about the location and you are looking for a venue.'
User: 'church hill college'
System: 'Are you looking for a pub or a restaurant?'
User: 'ya'
System: 'Are you looking for a pub or a restaurant?'
User: 'oh'
System: 'Are you looking for a pub or a restaurant?'
User: 'pub'
System: 'Let me confirm. You don't care about the location. You are looking for a venue.'
User: 'pub'
System: 'Let me confirm. You don't care about the location and you are looking for a venue.'
User: 'yeah'
System: 'Are you looking for a venue that allows children?'
User: 'yes'
System: 'The Baron of Beef allows children and it's in the cheap price range. It's an outstanding pub.'
User: 'i dont care'
System: 'The Baron of Beef allows children, it's in the cheap price range and it's an outstanding pub.'
User: 'would you shut the fuck up oh my god im looking for a pub'
System: 'The Baron of Beef, which allows children, is in the cheap price range. It's a great pub.'
User: 'unintelligible'
System: 'The Baron of Beef allows children, it's in the cheap price range and it's a great pub.'
User: 'sil'
System: 'The Baron of Beef allows children and it's in the cheap price range. It's an outstanding pub.'
User: 'thank you goodbye'


SOLUTION:
Cheap