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.

Example Input: 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 turkish restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, Clare College, or the Gallery at twelve A High Street.'
User: 'i dont care'
System: 'The Agora is a great restaurant and it serves turkish food.'
User: 'what is the phone number'
System: 'The phone number of The Agora is 01223308448.'
User: 'what is the area'
System: 'The Agora is in the central part of town.'
User: 'thank you goodbye'

Example Output: Don't Care

Example Input: 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 price range are you looking for? For example, expensive, or moderate.'
User: 'im looking for a coffee shop serving english food'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'moderate price range'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Cherry Hinton, or New Chesterton area.'
User: 'moderate'
System: 'What part of town do you have in mind? For example, something in the central, King's Hedges, or New Chesterton area.'
User: 'sil'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Newnham, or Trumpington area.'
User: 'the address'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Castle Hill, or Cherry Hinton area.'
User: 'trumpington area'
System: 'There is no cafe in the Trumpington area.'
User: 'sil'
System: 'There is no cafe in the Trumpington area.'
User: 'castle hill'
System: 'Would you like a trumpington area, or you don't care?'
User: 'sil'
System: 'Would you like a trumpington area, or you don't care?'
User: 'i dont care'
System: 'Carringtons is a great cafe and an outstanding restaurant. It serves cafe food and english food. It's in the moderate price range.'
User: 'i dont care'
System: 'Carringtons is on 23 Market Street.'
User: 'what is the address'
System: 'Carringtons is on 23 Market Street.'
User: 'what is the phone number'
System: 'The phone number of Carringtons is 01223361792.'
User: 'phone number'
System: 'The phone number of Carringtons is 01223361792.'
User: 'sil'
System: 'Carringtons is an outstanding restaurant.'
User: 'phone number'
System: 'The phone number of Carringtons is 01223361792.'
User: 'sil'
System: 'Carringtons is an outstanding restaurant.'
User: 'sil'
System: 'Carringtons is an outstanding restaurant.'
User: 'phone number'
System: 'The phone number of Carringtons is 01223361792.'
User: 'postcode'
System: 'Carringtons is in the area with the postcode CB2 3NZ.'
User: 'postcode'
System: 'Carringtons is in the area with the postcode CB2 3NZ.'
User: 'thank you'
System: 'Can I help you with anything else?'
User: 'thank you goodbye'

Example Output: Moderate

Example Input: 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 continental restaurant in the expensive price range'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Chesterton, or Newnham area.'
User: 'it doesnt matter'
System: 'Alimentum is a great restaurant, it serves continental and french food and it's in the expensive price range.'
User: 'whats the address'
System: 'Alimentum is on 152-154 Hills Road. The price for main courses ranges from 17 pounds 50 to 21 pounds and the price for a glass of wine ranges from 6 pounds 50 to 10 pounds 50.'
User: 'thank you good bye'

Example Output:
Expensive