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: 'i am looking for a greek restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Byard Art, Kettle's Yard, or the Michaelhouse Centre.'
User: 'no'
System: 'The Eraina Taverna, which serves greek food, is an outstanding restaurant.'
User: 'whats the address phone number and the price'
System: 'The Eraina Taverna is located on 2 Free School Lane and its phone number is 01223902126. The price for main courses ranges from 6 pounds 50 to 13 pounds 95.'
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: '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'

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: 'i need a moderately priced restaurant in the newnham area'
System: 'The Red Bull is a great restaurant. It's in the Newnham part of town. It's in the moderate price range.'
User: 'what is the phone number'
System: 'The phone number of The Red Bull is 01223902124.'
User: 'and the price range'
System: 'The Red Bull is an outstanding venue. The price for main courses ranges from 4 pounds 25 to 11 pounds 95 and the price for a cappuccino is 1 pound 95 and the price for a cheapest pint of beer is 2 pounds 65.'
User: 'are there any other moderately priced restaurants in the newnham area'
System: 'The Red Bull is a great restaurant, it's in the Newnham part of town and it's in the moderate price range.'
User: 'do you have any other'
System: 'The Red Bull is an outstanding restaurant, it's in the Newnham part of town and it's in the moderate price range.'
User: 'in the newnham area'
System: 'The Red Bull is a great restaurant, it's in the Newnham part of town and it's in the moderate price range.'
User: 'do you have any other restaurants that are moderately priced in the newnham area'
System: 'Are you looking for a venue in the New Chesterton or Newnham area?'
User: 'yes'
System: 'The Red Bull, which is in the Newnham part of town, is an outstanding restaurant. It's in the moderate price range.'
User: 'do you have anything else'
System: 'The Red Bull, which is in the Newnham part of town, is a great restaurant. It's in the moderate price range.'
User: 'thank you goodbye'

Example Output:
Moderate