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.

[EX Q]: 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 would like an expensive restaurant in the fen ditton area'
System: 'Are you looking for somewhere near a particular venue? For example, the Broughton House, Hughes Hall, or Jesus College.'
User: 'no'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Girton, or riverside area.'
User: 'the fen ditton area'
System: 'The Riverside Restaurant is an outstanding restaurant. It's in the Fen Ditton part of town. It's in the expensive price range.'
User: 'may i have the address and phone number'
System: 'The Riverside Restaurant is located on Cambridge Regional College, Newmarket Road and its phone number is 01223418997.'
User: 'what is the price'
System: 'The Riverside Restaurant is a great venue. The price for main courses ranges from 21 pounds 95 to 25 pounds 95.'
User: 'thank you goodbye'

[EX A]: Expensive

[EX Q]: 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 moderately priced restaurant in new chesterton'
System: 'Hakka is a great restaurant, it's in the New Chesterton part of town and it's in the moderate price range.'
User: 'background noise'
System: 'Hakka is a great restaurant. It's in the New Chesterton part of town. It's in the moderate price range.'
User: 'what is the phone number'
System: 'The phone number of Hakka is 01223568988.'
User: 'what is the address'
System: 'Hakka is on 24 Milton Road.'
User: 'thank you good bye'

[EX A]: Moderate

[EX Q]: 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 an international restaurant'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'it does not matter'
System: 'What kind of price range are you looking for? For example, moderate.'
User: 'sil'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'sil'
System: 'Giraffe, which serves international food, is an outstanding restaurant.'
User: 'any'
System: 'Are you looking for somewhere near a particular venue? For example, Clare Hall, Old Schools, or the Ruskin Gallery.'
User: 'any price'
System: 'Giraffe is a great venue. The price for main courses ranges from 6 pounds 95 to 14 pounds 95 and the price for a cappuccino is 2 pounds 10.'
User: 'any place'
System: 'Giraffe is a great restaurant.'
User: 'any place'
System: 'Giraffe is an outstanding venue. The price for main courses ranges from 6 pounds 95 to 14 pounds 95 and the price for a cappuccino is 2 pounds 10.'
User: 'sil'
System: 'Giraffe is a great restaurant.'
User: 'what is the address'
System: 'Giraffe is located on Christ's Lane.'
User: 'thank you goodbye'

[EX A]:
Don't Care

