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: 'cough'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'restaurant'
System: 'What type of food would you like? For example, Mexican and Tex Mex, Continental, or Indian.'
User: 'dont care'
System: 'What type of food would you like? For example, Cafe food, Contemporary, or Spanish.'
User: 'i dont care'
System: 'Are you looking for somewhere near a particular venue? For example, the Gallery at twelve A High Street, The Fitzwilliam Museum, or Trinity College.'
User: 'sil'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, the Michaelhouse Centre, or the Lammas Land Park.'
User: 'city cent'
System: 'La Raza is a great restaurant and it's in the central part of town.'
User: 'city center'
System: 'La Raza, which is in the central part of town, is an outstanding restaurant.'
User: 'whats the address'
System: 'La Raza is on 4-6, The Basement, Rose Crescent.'
User: 'address'
System: 'La Raza is on 4-6, The Basement, Rose Crescent.'
User: '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: 'price'
System: 'La Raza is a great 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 goodbye'


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: 'unintelligible sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'unintelligible sil'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'im looking for a expensive pub food restaurant'
System: 'What type of food would you like? For example, American, Indian, or Japanese.'
User: 'restaurant with pub food'
System: 'Revolution is an outstanding restaurant. It serves pub food. It's in the expensive price range.'
User: 'pub food'
System: 'Revolution, which serves pub food, is an outstanding restaurant. It's in the expensive price range.'
User: 'may i have the address and area'
System: 'Revolution is located on 3-7 Downing Street.'
User: 'area'
System: 'Revolution is an outstanding restaurant.'
User: 'sil'
System: 'Revolution is a great restaurant.'
User: 'what area is the restaurant in'
System: 'Revolution is in the central part of town.'
User: 'in what area'
System: 'Revolution is in the central part of town.'
User: 'thank you and 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: 'a restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Cafe Jello, the Museum Of Technology, or the People's Portraits Exhibition.'
User: 'restaurant'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, riverside, or Romsey area.'
User: 'something in the chesterton area'
System: 'Hakka, which is in the New Chesterton part of town, is an outstanding restaurant.'
User: 'sil'
System: 'Hakka is an outstanding restaurant and it's in the New Chesterton part of town.'
User: 'perfect address'
System: 'Hakka is located on 24 Milton Road.'
User: 'unintelligible'
System: 'Blue Spice, which is in the Girton part of town, is an outstanding restaurant.'
User: 'and phone number'
System: 'The phone number of Blue Spice is 01223413337.'
User: 'bye thank you goodbye'


SOLUTION:
Expensive

