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: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'an english restaurant'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'i dont care'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, Girton, or New Chesterton area.'
User: 'i dont care'
System: 'Carringtons is an outstanding cafe and a great restaurant and it serves cafe food and english food.'
User: 'can you please give me the address and the postcode'
System: 'Carringtons, which is in the area with the postcode CB2 3NZ, is located on 23 Market Street.'
User: 'alright 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: 'noise'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'an expensive restaurant in fenditton'
System: 'The Riverside Restaurant, which is in the Fen Ditton part of town, is a great restaurant. It's in the expensive price range.'
User: 'an expensive restaurant in fenditton'
System: 'The Riverside Restaurant is an outstanding restaurant, it's in the Fen Ditton part of town and it's in the expensive price range.'
User: 'what is the address and post code'
System: 'The Riverside Restaurant is on Cambridge Regional College, Newmarket Road. It's in the area with the postcode CB5 8DZ.'
User: 'what is the address and post code'
System: 'The Riverside Restaurant is located on Cambridge Regional College, Newmarket Road and it's in the area with the postcode CB5 8DZ.'
User: 'thank you goodbye'


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: 'i want to find a pub food restaurant'
System: 'What part of town do you have in mind? For example, something in the New Chesterton, Newnham, or Romsey area.'
User: 'in rosney romsey'
System: 'The Kingston Arms is a great restaurant. It's in the Romsey part of town. It serves pub food.'
User: 'um whats the address'
System: 'The Kingston Arms is located on 33 Kingston Street.'
User: 'and what is the phone number'
System: 'The phone number of The Kingston Arms is 01223319414.'
User: 'ok thank you good bye'


SOLUTION:
Cheap

