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: 'im looking for a restaurant in the barnwell area'
System: 'What type of food would you like? For example, Chinese take away, Japanese, or Turkish.'
User: 'ah it doesnt matter as long as its moderately priced'
System: 'The Wheatsheaf, which is in the Barnwell part of town, is an outstanding restaurant. It's in the moderate price range.'
User: 'ah whats the address and price'
System: 'The Wheatsheaf is on Stow Road, Stow-Cum-Quy. The price for main courses ranges from 4 pounds to 13 pounds and the price for a cheapest pint of beer is 2 pounds 65.'
User: 'ah whats the address again'
System: 'The Wheatsheaf is located on Stow Road, Stow-Cum-Quy.'
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: 'sil'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'a pub'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'uhhh'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, central, or Trumpington area.'
User: 'maybe inbetween'
System: 'Are you looking for somewhere near a particular venue? For example, the University Botanic Gardens, Lamma's Land, or The Fitzwilliam Museum.'
User: 'uhh the fitzwilliam museum'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'it doesnt matter'
System: 'There is no pub in the Newnham area.'
User: 'uh anywhere then'
System: 'The Baron of Beef is an outstanding pub.'
User: 'do they allow children'
System: 'The Baron of Beef, which allows children, is an outstanding pub.'
User: 'ya what what is the address'
System: 'The Baron of Beef is located on Bridge Street.'
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: 'continental restaurant should have expensive price range'
System: 'Alimentum, which serves continental and french food, is a great restaurant. It's in the expensive price range.'
User: 'address'
System: 'Alimentum is on 152-154 Hills Road. The price for main courses ranges from 17 pounds 50 to 21 pounds and the price for a glass of wine ranges from 6 pounds 50 to 10 pounds 50.'
User: 'phone number'
System: 'The phone number of Alimentum is 01223413000.'
User: 'thank you good bye'

[EX A]:
Expensive