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 greek restaurant and it should have an expensive price range'
System: 'The Varsity, which serves greek food, is an outstanding restaurant. It's in the expensive price range.'
User: 'sil'
System: 'Are you looking for somewhere near a particular venue? For example, the Folk Museum, the Michaelhouse Centre, or the Whipple Museum.'
User: 'what was that'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, New Chesterton, or riverside area.'
User: 'no'
System: 'The Varsity, which serves greek food, is an outstanding restaurant. It's in the expensive price range.'
User: 'sil'
System: 'Are you looking for somewhere near a particular venue? For example, Great Saint Mary's Church, the People's Portraits Exhibition, or Williams Art and Antiques.'
User: 'uh what is the address and the area of the venue'
System: 'The Varsity is on 35 Saint Andrew's Street. The price for main courses ranges from 9 pounds 95 to 18 pounds 95.'
User: 'no'
System: 'The Varsity is an outstanding restaurant.'
User: 'what is the area and address of the place'
System: 'The Varsity, which is in the Girton part of town, is located on 35 Saint Andrew's Street. The price for main courses ranges from 9 pounds 95 to 18 pounds 95.'
User: 'sil'
System: 'The Varsity is a great restaurant.'
User: 'what is the address and the area of the venue'
System: 'The Varsity is located on 35 Saint Andrew's Street.'
User: 'what type of food does it serve'
System: 'The Varsity serves greek food.'
User: 'ok and where is the area uh that this is located'
System: 'The Varsity is on 35 Saint Andrew's Street and it's in the Girton part of town.'
User: 'thank you good bye'

[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: 'im looking for food'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'restaurant'
System: 'What kind of price range are you looking for? For example, expensive, or moderate.'
User: 'moderate'
System: 'What type of food would you like? For example, Contemporary, English, or French.'
User: 'chinese'
System: 'The J Restaurant, which serves chinese food, is a great restaurant. It's in the moderate price range.'
User: 'chinese'
System: 'The J Restaurant is a great restaurant, it serves chinese food and it's in the moderate price range.'
User: 'give me information'
System: 'Are you looking for somewhere near a particular venue? For example, Cafe Jello, Clare College, or the Gallery at twelve A High Street.'
User: 'the gallery at twelve and hide'
System: 'The J Restaurant is an outstanding restaurant, it serves chinese food and it's in the moderate price range.'
User: 'thats all i need'
System: 'The phone number of the J Restaurant is 01223307273.'
User: 'thank you good unintelligible'

[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: 'uh'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, the Museum Of Technology, or the Folk Museum.'
User: 'gir girton area'
System: 'What type of food would you like? For example, Chinese take away, American, or Continental.'
User: 'i dont care'
System: 'Blue Spice is a great restaurant and it's in the Girton part of town.'
User: 'cheap'
System: 'The Dojo Noodle Bar, which is in the Girton part of town, is an outstanding restaurant. It's in the cheap price range.'
User: 'the phone number and address'
System: 'The Dojo Noodle Bar is on Miller's Yard and its phone number is 01223363471.'
User: 'phone number'
System: 'The phone number of the Dojo Noodle Bar is 01223363471.'
User: 'address'
System: 'The Dojo Noodle Bar is located on Miller's Yard.'
User: 'noise sil'
System: 'The Dojo Noodle Bar is a great restaurant and it's in the Girton part of town. It's in the cheap price range.'
User: 'thank you good bye'

[EX A]:
Cheap