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 cheap restaurant in the addonsbrookes area'
System: 'The Peking Restaurant is an outstanding restaurant, it's in the Addenbrooke's part of town and it's in the cheap price range.'
User: 'ok and whats the address'
System: 'The Peking Restaurant is located on Unit 3, The Belvedere, Homerton Street.'
User: 'and the post code'
System: 'The Peking Restaurant is in the area with the postcode CB2 8NX.'
User: 'ok thank you 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: 'hi im looking for a thai restaurant'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'i dont care about the pr the price range'
System: 'What kind of price range are you looking for? For example, expensive, or moderate.'
User: 'i dont care'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Barnwell, or New Chesterton area.'
User: 'new chesterton area'
System: 'There is no restaurant in the New Chesterton area and serving thai food.'
User: 'so where can i get a thai food restaurant'
System: 'There is no restaurant in the New Chesterton area and serving thai food.'
User: 'can you select me another venue'
System: 'Would you like a new chesterton area, or you don't care?'
User: 'i dont care'
System: 'The Wrestlers, which serves thai food, is a great restaurant.'
User: 'background noise'
System: 'The phone number of The Wrestlers is 01223566554.'
User: 'ok can i get the address and the price range'
System: 'The Wrestlers is on 337 Newmarket Road. The price for main courses ranges from 8 pounds 50 to 9 pounds 70 and the price for a cheapest pint of beer is 3 pounds 30.'
User: 'background noise'
System: 'The Wrestlers is a great restaurant.'
User: 'and the phone number please'
System: 'The phone number of The Wrestlers is 01223566554.'
User: 'thank you good bye'

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 venue are you looking for? For example, a cafe, or a pub.'
User: 'i want to find a cheap pub with an internet connection'
System: 'The Bakers, which has an internet connection, is in the cheap price range. It's an outstanding pub.'
User: 'what is the address and postcode'
System: 'The Bakers, which is in the area with the postcode CB1 1BG, is located on 176 East Road.'
User: 'thank you goodbye'

Example Output:
Cheap