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: 'unintelligible'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'restaurant'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'cheap'
System: 'Are you looking for somewhere near a particular venue? For example, the Broughton House Gallery, Castle Galleries, or Hughes Hall.'
User: 'city center'
System: 'What type of food would you like? For example, Continental, Indian, or International.'
User: 'it doesnt matter if city center'
System: 'Are you looking for somewhere near a particular venue? For example, Cafe Jello, the Folk Museum, or the Scott Polar Museum.'
User: 'it doesnt matter'
System: 'La Raza is a great restaurant. It's in the central part of town. It's in the cheap price range.'
User: 'it dunt uh city center'
System: 'Are you looking for a pub or a restaurant?'
User: 'restaurant'
System: 'La Raza is a great restaurant, it's in the central part of town and it's in the cheap price range.'
User: 'ok what is the address phone number'
System: 'La Raza is on 4-6, The Basement, Rose Crescent and its phone number is 01223464550.'
User: 'um what is 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 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: 'yeah im looking for a cheap pub'
System: 'The Bakers, which is in the cheap price range, is a great pub.'
User: 'is it in the riverside area'
System: 'The Bakers is a great pub. It's in the riverside part of town. It's in the cheap price range.'
User: 'okay excellent can you give me the address has a tv'
System: 'The Avery has a television and it's in the riverside part of town. It's in the cheap price range. It's an outstanding pub.'
User: 'whats the address please'
System: 'The Avery is on 69-73 Regent Street.'
User: '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: 'im looking for a greek restaurant i dont care about the price range'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'restaurant'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'moderate'
System: 'What part of town do you have in mind? For example, something in the Girton, New Chesterton, or riverside area.'
User: 'riverside'
System: 'What type of food would you like? For example, Mexican and Tex Mex, Continental, or Turkish.'
User: 'greek restaurant'
System: 'There is no restaurant in the riverside area and serving greek food.'
User: 'find me a greek restaurant'
System: 'There is no restaurant in the riverside area and serving greek food.'
User: 'find me a greek restaurant i dont care where is'
System: 'The Eraina Taverna is a great restaurant and it serves greek food. It's in the moderate price range.'
User: 'address and phone number and price please'
System: 'The Eraina Taverna is located on 2 Free School Lane and its phone number is 01223902126. The price for main courses ranges from 6 pounds 50 to 13 pounds 95.'
User: 'thank you and goodbye'


SOLUTION:
Don't Care