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: 'sil'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'im looking for a cheap restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Downing College, Gonville and Caius College, or the People's Portraits Exhibition.'
User: 'it should be in the romsey area'
System: 'Are you looking for somewhere near a particular venue? For example, Christ's College, the Regency Gallery, or Trinity College.'
User: 'no'
System: 'The Royal Standard, which is in the Romsey part of town, is an outstanding restaurant. It's in the cheap price range.'
User: 'what is the phone number'
System: 'The phone number of the Royal Standard is 01223902175.'
User: 'what type of food do they serve'
System: 'The Royal Standard serves indian food.'
User: 'thank you goodbye'

[EX A]: Cheap

[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: 'breathing sil'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'breathing sil'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'noise restaurant traditional restaurant'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'traditional restaurant'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'noise sil'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'noise sil'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'moderate'
System: 'What part of town do you have in mind? For example, Barnwell, or Romsey.'
User: 'noise moderate noise'
System: 'What part of town do you have in mind? For example, something in the Arbury, Girton, or King's Hedges area.'
User: 'breathing sil'
System: 'Are you looking for somewhere near a particular venue? For example, the Botanic Garden, Gonville and Caius College, or Hughes Hall.'
User: 'romsey romsey'
System: 'There is no restaurant in the Romsey area and serving traditional food.'
User: 'unintelligible'
System: 'Would you like traditional or X food?'
User: 'noise sil'
System: 'Would you like traditional or X food?'
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: 'background noise'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'background noise'
System: 'What kind of price range are you looking for? For example, free, or moderate.'
User: 'restaurant'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'restaurant in kings hedges'
System: 'The Ranch, which is in the King's Hedges part of town, is a great restaurant.'
User: 'unintelligible'
System: 'The Ranch, which is in the King's Hedges part of town, is a great restaurant.'
User: 'whats the price of the venue'
System: 'The Ranch is an outstanding venue. The price for main courses ranges from 6 pounds to 12 pounds 50.'
User: 'whats the price of the venue'
System: 'The Ranch is a great venue. The price for main courses ranges from 6 pounds to 12 pounds 50.'
User: 'what is the address'
System: 'The Ranch is located on 100 Histon Road.'
User: 'whats the phone number'
System: 'The phone number of the Ranch is 01223322772.'
User: 'thank you good bye'

[EX A]:
Don't Care