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 need a moderately priced restaurant in the newnham area'
System: 'The Red Bull is a great restaurant. It's in the Newnham part of town. It's in the moderate price range.'
User: 'what is the phone number'
System: 'The phone number of The Red Bull is 01223902124.'
User: 'and the price range'
System: 'The Red Bull is an outstanding venue. The price for main courses ranges from 4 pounds 25 to 11 pounds 95 and the price for a cappuccino is 1 pound 95 and the price for a cheapest pint of beer is 2 pounds 65.'
User: 'are there any other moderately priced restaurants in the newnham area'
System: 'The Red Bull is a great restaurant, it's in the Newnham part of town and it's in the moderate price range.'
User: 'do you have any other'
System: 'The Red Bull is an outstanding restaurant, it's in the Newnham part of town and it's in the moderate price range.'
User: 'in the newnham area'
System: 'The Red Bull is a great restaurant, it's in the Newnham part of town and it's in the moderate price range.'
User: 'do you have any other restaurants that are moderately priced in the newnham area'
System: 'Are you looking for a venue in the New Chesterton or Newnham area?'
User: 'yes'
System: 'The Red Bull, which is in the Newnham part of town, is an outstanding restaurant. It's in the moderate price range.'
User: 'do you have anything else'
System: 'The Red Bull, which is in the Newnham part of town, is a great restaurant. It's in the moderate price range.'
User: 'thank you goodbye'

[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: 'im looking for an expensive restaurant and it should be in the trumpington area'
System: 'Would you like an expensive price range, or you don't care?'
User: 'i need expensive restaurant in the trumpington area'
System: 'Are you looking for somewhere near a particular venue? For example, Castle Galleries, or Pembroke College.'
User: 'no'
System: 'The Oak Bistro, which is in the Trumpington part of town, is a great restaurant. It's in the expensive price range.'
User: 'can i get the address phone number and the price of the venue'
System: 'The Oak Bistro is on 6 Lensfield Road and its phone number is 01223323361. The price for main courses ranges from 11 pounds 50 to 17 pounds 75.'
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: 'restaurant fen ditton'
System: 'What kind of price range are you looking for? For example, free, or moderate.'
User: 'i dont care'
System: 'What part of town do you have in mind? For example, something in the Arbury, King's Hedges, or Newnham area.'
User: 'dont care'
System: 'Are you looking for somewhere near a particular venue? For example, Gonville and Caius College, Queens' College, or Williams Art and Antiques.'
User: 'unintelligible'
System: 'What type of food would you like? For example, Mexican and Tex Mex, Greek, or International.'
User: 'no'
System: 'What type of food would you like? For example, Continental, or Seafood.'
User: 'dont care'
System: 'Are you looking for a pub or a restaurant?'
User: 'continental'
System: 'Alimentum is a great restaurant and it serves continental and french food.'
User: 'restaurant'
System: 'Alimentum, which serves continental food, is an outstanding restaurant. It serves french food.'
User: 'address'
System: 'Alimentum is on 152-154 Hills Road.'
User: 'address'
System: 'Alimentum is on 152-154 Hills Road.'
User: 'phone number'
System: 'The phone number of Alimentum is 01223413000.'
User: 'postcode'
System: 'Alimentum is in the area with the postcode CB2 8PB.'
User: 'thank you goodbye'

[EX A]:
Don't Care