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: 'im looking for a traditional restaurant with an expensive price range'
System: 'The Riverside Restaurant, which serves traditional food, is an outstanding restaurant. It's in the expensive price range.'
User: 'what is the address and postcode'
System: 'The Riverside Restaurant is on University Centre, Granta Place and it's in the area with the postcode CB2 1RU. The price for main courses ranges from 14 pounds 95 to 16 pounds 95.'
User: 'thank you 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 moderate priced restaurant in new chesterton'
System: 'Hakka, which is in the New Chesterton part of town, is an outstanding restaurant. It's in the moderate price range.'
User: 'what is the address and phone number'
System: 'Hakka is on 24 Milton Road and its phone number is 01223568988. The price for main courses ranges from 5 pounds to 13 pounds.'
User: 'sil'
System: 'Hakka is an outstanding restaurant.'
User: 'what type of partial'
System: 'Hakka serves chinese food.'
User: 'what type of food'
System: 'Hakka serves chinese food.'
User: 'thank you goodbye'


SOLUTION: Moderate

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 price range are you looking for? For example, expensive, or free.'
User: 'background noise'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'i dont care'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'a fusion restaurant'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, King's Hedges, or New Chesterton area.'
User: 'i dont care'
System: 'The Dojo Noodle Bar, which serves fusion food, is a great restaurant.'
User: 'what is the price'
System: 'The Dojo Noodle Bar is an outstanding venue. The price for main courses ranges from 5 pounds 70 to 7 pounds.'
User: 'what is the address and phone number'
System: 'The Dojo Noodle Bar is located on Miller's Yard and its phone number is 01223363471.'
User: 'thank you good bye'


SOLUTION:
Don't Care