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: 'noise'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'spanish restaurant'
System: 'What kind of price range are you looking for? For example, free, or moderate.'
User: 'moderate'
System: 'Carringtons serves cafe food and english food. This place, which is a great cafe and an outstanding restaurant, is in the moderate price range.'
User: 'can i have the address'
System: 'Carringtons is located on 23 Market Street.'
User: 'can i have the price venue'
System: 'Carringtons is an outstanding venue. The price for main courses ranges from 4 pounds 25 to 6 pounds 25 and the price for a cappuccino is 1 pound 95.'
User: 'sil'
System: 'Carringtons is an outstanding restaurant.'
User: 'can i have the prices'
System: 'Carringtons is a great venue. The price for main courses ranges from 4 pounds 25 to 6 pounds 25 and the price for a cappuccino is 1 pound 95.'
User: 'thank you goodbye'

[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: 'id like to find a moderately priced restaurant'
System: 'What type of food would you like? For example, French, Spanish, or Traditional.'
User: 'any'
System: 'What type of food would you like? For example, pub, English, or Turkish.'
User: 'turkish'
System: 'Are you looking for somewhere near a particular venue? For example, Corpus Christi, Pembroke College, or Primavera.'
User: 'the new chesterton area'
System: 'Are you looking for a venue in the Chesterton or New Chesterton area?'
User: 'yes'
System: 'Are you looking for a venue in the Chesterton or New Chesterton area?'
User: 'new chesterton'
System: 'There is no restaurant in the New Chesterton area and serving turkish food.'
User: 'i would like to find a moderately priced restaurant in the new chesterton area'
System: 'There is no restaurant in the New Chesterton area and serving turkish food.'
User: 'i would like to find traditional food in the new chesterton area'
System: 'There is no restaurant in the New Chesterton area and serving traditional food.'
User: 'may i restart'
System: 'There is no restaurant in the New Chesterton area and serving traditional food.'
User: 'may i try a different selection'
System: 'Would you like a new chesterton area, or you don't care?'
User: 'new chesterton area'
System: 'Would you like traditional or X food?'
User: 'x foods'
System: 'Would you like traditional or X food?'
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: 'uh a chinese take away restaurant cheap price range'
System: 'Saigon City, which serves chinese take away, is an outstanding restaurant. It's in the cheap price range.'
User: 'may i get their address'
System: 'Saigon City is on 169 High Street, Chesterton. The price for main courses ranges from 4 pounds 60 to 5 pounds 10.'
User: 'may i get their phone number'
System: 'The phone number of Saigon City is 01223356555.'
User: 'thank you good bye'

[EX A]:
Cheap