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: 'a cheap restaurant in the girton area'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'i dont care'
System: 'La Mimosa, which is in the Girton part of town, is a great restaurant. It serves italian food.'
User: 'whats the phone number'
System: 'The phone number of La Mimosa is 01223362525.'
User: 'whats the address'
System: 'La Mimosa is on Thompson's Lane.'
User: 'whats the post code'
System: 'La Mimosa is in the area with the postcode CB5 8AQ.'
User: 'thank you good bye'

[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: 'noise sil'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'cheap restaurant castle hill area'
System: 'What type of food would you like? For example, Fastfood, International, or Seafood.'
User: 'doent matter'
System: 'Are you looking for somewhere near a particular venue? For example, Great Saint Mary's Church, Holy Trinity Church, or Old Schools.'
User: 'no'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Girton, or Trumpington area.'
User: 'castle hill'
System: 'What part of town do you have in mind? For example, Addenbrooke's.'
User: 'castle hill'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Cherry Hinton, or King's Hedges area.'
User: 'castle hill'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Chesterton, or New Chesterton area.'
User: 'thank you good bye'

[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: 'noise'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'noise'
System: 'Are you looking for a venue with a television?'
User: 'moderate'
System: 'Are you looking for a venue with an internet connection?'
User: 'no'
System: 'Are you looking for a venue that allows children?'
User: 'no'
System: 'Are you looking for a pub or a restaurant?'
User: 'no'
System: 'Are you looking for a pub or a restaurant?'
User: 'im looking for a'
System: 'Are you looking for a pub or a restaurant?'
User: 'a restaurant'
System: 'What type of food would you like? For example, Chinese, or Fusion.'
User: 'any food'
System: 'Are you looking for a pub or a restaurant?'
User: 'thank you goodbye'

[EX A]:
Moderate