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: 'noise'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'noise'
System: 'What kind of venue are you looking for? For example, a restaurant.'
User: 'restaurant'
System: 'What kind of price range are you looking for? For example, expensive, or moderate.'
User: 'a restaurant'
System: 'What kind of price range are you looking for? For example, moderate.'
User: 'expensive'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'noise'
System: 'What kind of price range are you looking for? For example, expensive, or moderate.'
User: 'expensive'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'expensive'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'expensive'
System: 'What type of food would you like? For example, Cafe food, pub, or Vegetarian.'
User: 'expensive'
System: 'What type of food would you like? For example, pub, American, or Continental.'
User: 'does not matter'
System: 'What type of food would you like? For example, Chinese take away, Contemporary, or Italian.'
User: 'american'
System: 'There is no restaurant serving american food in the expensive price range.'
User: 'italian'
System: 'Would you like an expensive price range, or you don't care?'
User: 'expensive'
System: 'Are you looking for somewhere near a particular venue? For example, Kettle's Yard, the Michaelhouse Centre, or Primavera.'
User: 'in the addenbrookes area'
System: 'The Sorrento, which is in the Addenbrooke's part of town, is a great restaurant. This place, which serves italian food, is in the expensive price range.'
User: 'what is the address and the post code'
System: 'The Sorrento, which is in the area with the postcode CB1 7AN, is on 196 Cherry Hinton Road. Its phone number is 01223243533.'
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: 'yes im looking for cheap restaurant in the fenditton area'
System: 'Are you looking for somewhere near a particular venue? For example, the Book and Print Gallery, Christ's College, or the Saint Barnabas Press Gallery.'
User: 'fenditton'
System: 'What part of town do you have in mind? For example, something in the Barnwell, central, or New Chesterton area.'
User: 'fenditton'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, Cambridge Contemporary Art, or Cherry Hinton Water Play.'
User: 'fenditton'
System: 'Let me confirm. You are looking for a venue in the Girton area.'
User: 'thats not right'
System: 'Let me confirm. You don't care about the area and you are looking for a venue.'
User: 'fenditton'
System: 'Let me confirm. You don't care about the area. You are looking for a venue.'
User: 'no one want something in fenditton'
System: 'The Milton Park English and Thai Restaurant, which is in the Fen Ditton part of town, is an outstanding restaurant. It's in the cheap price range.'
User: 'ok can i get the address and post code please'
System: 'The Milton Park English and Thai Restaurant is located on Milton Park Golf Course, Ely Road, Milton and it's in the area with the postcode CB24 6DD. The price for main courses ranges from 4 pounds 50 to 8 pounds 50.'
User: 'ok thank you good the 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: 'i want to have moderately priced restaurant in the kings hedges area'
System: 'The Ranch is a great restaurant, it's in the King's Hedges part of town and it's in the moderate price range.'
User: 'may i have the address phone number and postcode'
System: 'The Ranch is on 100 Histon Road and its phone number is 01223322772. It's in the area with the postcode CB4 3JP.'
User: 'thank you goodbye'


SOLUTION:
Moderate