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 thia restaurant i dont care about the price'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'a thia restaurant'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'doesnt matter'
System: 'The Wrestlers is a great restaurant and it serves thai food.'
User: 'what is the address and area'
System: 'The Wrestlers is on 337 Newmarket Road and its phone number is 01223566554.'
User: 'what is its area'
System: 'The Wrestlers is in the riverside part of town.'
User: 'thank you good bye'

[EX A]: 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: 'knock sil'
System: 'The Bakers is an outstanding pub.'
User: 'breathing restaurant'
System: 'What type of food would you like? For example, Chinese, or Middleeastern.'
User: 'restaurant'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'i dont care'
System: 'Are you looking for somewhere near a particular venue? For example, Cambridge Contemporary Art, Clare College, or Hughes Hall.'
User: 'moderately'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Arbury, or Barnwell area.'
User: 'fenditton area'
System: 'Sitar Tandoori is a great restaurant and it's in the Cherry Hinton part of town.'
User: 'fenditton'
System: 'What type of food would you like? For example, Fusion, Seafood, or Spanish.'
User: 'i dont care'
System: 'Sitar Tandoori, which is in the Cherry Hinton part of town, is an outstanding restaurant.'
User: 'address'
System: 'Sitar Tandoori is on 43 High Street, Cherry Hinton.'
User: 'phone number'
System: 'The phone number of Sitar Tandoori is 01223249955.'
User: 'price of venue'
System: 'Sitar Tandoori is a great restaurant.'
User: 'price of venue'
System: 'Sitar Tandoori is a great restaurant and it's in the Cherry Hinton part of town.'
User: 'good bye'
System: 'Sitar Tandoori is a great restaurant.'
User: '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 pub, or a restaurant.'
User: 'background noise'
System: 'Can I help you with anything else?'
User: 'im looking for a spanish restaurant'
System: 'What part of town do you have in mind? For example, something in the Barnwell, King's Hedges, or Romsey area.'
User: 'a spanish restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Cherry Hinton Water Play, or Great Saint Mary's Church.'
User: 'any area'
System: 'Are you looking for somewhere near a particular venue? For example, Artworks, Cherry Hinton Water Play, or Hughes Hall.'
User: 'great mary church'
System: 'There is no restaurant serving spanish food that is providing services for free.'
User: 'thank you good bye'

[EX A]:
Cheap