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.

[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 an expensive restaurant in the fen ditton area'
System: 'The Riverside Restaurant, which is in the Fen Ditton part of town, is a great restaurant. It's in the expensive price range.'
User: 'what type of food do they have'
System: 'The Riverside Restaurant serves contemporary food.'
User: 'whats the phone number'
System: 'The phone number of the Riverside Restaurant is 01223418997.'
User: 'what is the address'
System: 'The Riverside Restaurant is on Cambridge Regional College, Newmarket Road.'
User: 'thank you goodbye'

[A]: Expensive


[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 need an english restaurant and it should have expensive price range'
System: 'The Backstreet Bistro, which serves contemporary food, is an outstanding restaurant. It serves english food and it's in the expensive price range.'
User: 'great can i have the number and area please'
System: 'The phone number of the Backstreet Bistro is 01223306306. The price for main courses ranges from 10 pounds 95 to 14 pounds 25.'
User: 'noise sil'
System: 'The Backstreet Bistro is a great restaurant.'
User: 'noise sil'
System: 'The Backstreet Bistro is a great restaurant, it serves contemporary and english food and it's in the expensive price range.'
User: 'noise sil'
System: 'The Backstreet Bistro, which serves contemporary food, is an outstanding restaurant. This place, which serves english food, is in the expensive price range.'
User: 'can i have the can i have the number and the area please'
System: 'There is no restaurant in the Girton area and serving english food.'
User: 'can i have the number and area please'
System: 'Would you like a girton area, or you don't care?'
User: 'can i have the phone number'
System: 'Would you like a girton area, or you don't care?'
User: 'phone number'
System: 'Would you like a girton area, or you don't care?'
User: 'i dont care'
System: 'Would you like an english food, or you don't care?'
User: 'i dont care'
System: 'The phone number of the Backstreet Bistro is 01223306306.'
User: 'english restaurant'
System: 'Would you like an english food, or you don't care?'
User: 'address please'
System: 'Would you like an english food, or you don't care?'
User: 'english restaurant and the address'
System: 'The Backstreet Bistro is on 2 Sturton Street.'
User: 'and post code'
System: 'The Backstreet Bistro is in the area with the postcode CB1 2QA.'
User: 'very good thank you good bye'

[A]: Expensive


[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: 'uh can you find me a mexicana texmex restaurant in the expensive price range'
System: 'Nanna Mexico is a great restaurant, it serves mexican and tex mex food and it's in the expensive price range.'
User: 'ok what is the phone number and address of the venue'
System: 'Nanna Mexico is located on 33 Regent Street and its phone number is 01223902150. The price for main courses ranges from 5 pounds 35 to 15 pounds 50 and the price for a cappuccino is 2 pounds 95.'
User: 'ok what is the address of the venue'
System: 'Nanna Mexico is located on 33 Regent Street.'
User: 'ok thank you goodbye'

[A]:
Expensive