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: '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: 'hi im looking for an english restaurant'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, Fen Ditton, or King's Hedges area.'
User: 'uh'
System: 'Are you looking for somewhere near a particular venue? For example, the Gallery at twelve A High Street, Holy Trinity Church, or Old Schools.'
User: 'unintelligible'
System: 'Are you looking for somewhere near a particular venue? For example, Little Saint Mary's, or the Museum of Classical Archaeology.'
User: 'unintelligible area'
System: 'Carringtons is an outstanding cafe and a great restaurant and it serves cafe food and english food.'
User: 'ok can i get the address please'
System: 'Carringtons, which is in the central part of town, is on 23 Market Street.'
User: 'and the number phone the phone number'
System: 'The phone number of Carringtons is 01223361792.'
User: 'ok thank you'
System: 'Carringtons is a great cafe and an outstanding restaurant and it serves cafe food and english food.'
User: 'good bye'


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: 'cheap restaurant in the city center'
System: 'Are you looking for somewhere near a particular venue? For example, Pembroke College, the People's Portraits Exhibition, or the Ruskin Gallery.'
User: 'city center area'
System: 'What type of food would you like? For example, Contemporary, Thai, or Turkish.'
User: 'unintelligible cheap restaurant'
System: 'What type of food would you like? For example, Mexican and Tex Mex, Chinese, or Greek.'
User: 'any'
System: 'What type of food would you like? For example, East asian, Fastfood, or Indian.'
User: 'any type of food'
System: 'Are you looking for somewhere near a particular venue? For example, the Botanical Garden* Botanical Gardens, Hughes Hall, or Kettle's Yard.'
User: 'no'
System: 'La Raza, which is in the central part of town, is a great restaurant. It's in the cheap price range.'
User: 'what is the address'
System: 'La Raza is on 4-6, The Basement, Rose Crescent.'
User: 'and the price'
System: 'La Raza is an outstanding venue. The price for main courses ranges from 1 pound 95 to 13 pounds 95 and the entrance for adults is 4 pounds.'
User: 'thank you good bye'


SOLUTION:
Cheap