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 moderately priced restaurant in new chesterton'
System: 'Hakka is a great restaurant, it's in the New Chesterton part of town and it's in the moderate price range.'
User: 'background noise'
System: 'Hakka is a great restaurant. It's in the New Chesterton part of town. It's in the moderate price range.'
User: 'what is the phone number'
System: 'The phone number of Hakka is 01223568988.'
User: 'what is the address'
System: 'Hakka is on 24 Milton Road.'
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: 'can i have an expensive east asian restaurant'
System: 'Shiraz, which serves east asian food, is a great restaurant. It's in the expensive price range.'
User: 'can i have the address please'
System: 'Shiraz is located on 84 Regent Street.'
User: 'can i have the phone number please'
System: 'The phone number of Shiraz is 01223902104.'
User: 'can i have the price range'
System: 'Shiraz is a great venue. The price for main courses ranges from 9 pounds to 14 pounds 15.'
User: 'background noise'
System: 'Shiraz is an outstanding restaurant, it serves east asian food and it's in the expensive price range.'
User: 'can i have the price venue'
System: 'Shiraz is an outstanding venue. The price for main courses ranges from 9 pounds to 14 pounds 15.'
User: 'thank you good bye'


SOLUTION: Expensive

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: 'unitelligible'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'im looking for a cheap restaurant in the cherry hinton area'
System: 'What type of food would you like? For example, Cafe food, French, or Seafood.'
User: 'sil'
System: 'Are you looking for somewhere near a particular venue? For example, Cambridge Contemporary Art, the Museum of Archaelogy and Anthropology, or Saint Catharine's College.'
User: 'unintelligible'
System: 'What type of food would you like? For example, Northern european, English, or Spanish.'
User: 'sil'
System: 'What type of food would you like? For example, Drinks and snacks only, French, or Italian.'
User: 'dont care'
System: 'Are you looking for a pub or a restaurant?'
User: 'dont care'
System: 'Are you looking for a pub or a restaurant?'
User: 'a restaurant'
System: 'What type of food would you like? For example, pub, International, or Turkish.'
User: 'sil'
System: 'Are you looking for somewhere near a particular venue? For example, the Museum Of Technology, the Folk Museum, or King's College.'
User: 'dont care'
System: 'Spice Merchants, which is in the Cherry Hinton part of town, is a great restaurant. It's in the cheap price range.'
User: 'sil'
System: 'Spice Merchants, which is in the Cherry Hinton part of town, is an outstanding restaurant. It's in the cheap price range.'
User: 'whats the address'
System: 'Spice Merchants is located on 60 Trumpington Road.'
User: 'whats the address'
System: 'Spice Merchants is located on 60 Trumpington Road.'
User: 'whats the phone number'
System: 'The phone number of Spice Merchants is 01223843436.'
User: 'whats the phone number'
System: 'The phone number of Spice Merchants is 01223843436.'
User: 'thank you goodbye'


SOLUTION:
Cheap

