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: 'hi im looking for a cheap restaurant'
System: 'What type of food would you like? For example, East asian, pub, or Turkish.'
User: 'turkish'
System: 'There is no restaurant serving turkish food in the cheap price range.'
User: 'um'
System: 'There is no restaurant serving turkish food in the cheap price range.'
User: 'ok so i want something moderate'
System: '196 Meze Bar, which serves turkish food, is an outstanding restaurant. It's in the moderate price range.'
User: 'is it in the addenbrookes area'
System: '196 Meze Bar is in the Romsey part of town.'
User: 'ok can i get an address'
System: '196 Meze Bar is located on 196 Mill Road. The price for main courses ranges from 10 pounds to 12 pounds 50 and the price for a cheapest glass of wine is 2 pounds 90 and the price for a cappuccino is 1 pound 80.'
User: 'uh ok do you have something else'
System: '196 Meze Bar, which serves turkish food, is a great restaurant. It's in the moderate price range.'
User: 'ok give me the address and the phone number'
System: '196 Meze Bar is located on 196 Mill Road and its phone number is 01223410519.'
User: 'thank you and good bye'

Example Output: Cheap

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 english restaurant in the moderate price range'
System: 'Carringtons, which serves cafe food, is a great cafe and an outstanding restaurant. It serves english food and it's in the moderate price range.'
User: 'what is the phone number'
System: 'The phone number of Carringtons is 01223361792.'
User: 'and what is the postcode of the venue'
System: 'Carringtons is in the area with the postcode CB2 3NZ.'
User: 'thank you good bye'

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 an expensive restaurant in the romsey area'
System: 'The Backstreet Bistro, which is in the Romsey part of town, is an outstanding restaurant. It's in the expensive price range.'
User: 'background noise'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, Fen Ditton, or Newnham area.'
User: 'the romsey area'
System: 'The Backstreet Bistro, which is in the Romsey part of town, is an outstanding restaurant. It's in the expensive price range.'
User: 'i need the phone number and postcode'
System: 'The phone number of the Backstreet Bistro is 01223306306. It's in the area with the postcode CB1 2QA.'
User: 'thank you good bye'

Example Output:
Expensive