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.

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 the cafe food restaurant'
System: 'Subway, which serves cafe food, is an outstanding restaurant.'
User: 'find should have a cheap price range'
System: 'Subway is a great restaurant, it serves cafe food and it's in the cheap price range.'
User: 'uh what is the address and post code'
System: 'Subway, which is in the area with the postcode CB1 2AD, is located on 40-42 Mill Road. The price for main courses ranges from 1 pound 99 to 5 pounds 60.'
User: 'thank you goodbye'

Cheap

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: 'cheap contemporary restaurant'
System: 'All Bar One, which serves contemporary food, is an outstanding restaurant. It's in the cheap price range.'
User: 'phone number'
System: 'The phone number of All Bar One is 01223371081.'
User: 'uh price of venue'
System: 'All Bar One is an outstanding venue. The price for main courses ranges from 7 pounds 95 to 12 pounds 95 and the price for a glass of wine ranges from 2 pounds 85 to 6 pounds 95.'
User: 'thank you good bye'

Cheap

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 venue are you looking for? For example, a cafe.'
User: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'im looking for a restaurant in cherry hinton'
System: 'Are you looking for somewhere near a particular venue? For example, Castle Galleries, the Gallery at twelve A High Street, or Primavera.'
User: 'im looking for a restaurant in cherry hinton in any price range'
System: 'HK Fusion is a great restaurant and it's in the Cherry Hinton part of town.'
User: 'no'
System: 'HK Fusion, which is in the Cherry Hinton part of town, is an outstanding restaurant.'
User: 'what is the address and phone number and what type of food do they serve'
System: 'HK Fusion, which serves chinese food, is on 21 Burleigh Street. Its phone number is 01223355909. The price for main courses ranges from 5 pounds to 8 pounds.'
User: 'what is the address and phone number'
System: 'HK Fusion is on 21 Burleigh Street and its phone number is 01223355909.'
User: 'thank you goodbye'


Don't Care