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 moderately priced restaurant'
System: 'What type of food would you like? For example, Chinese take away, Fastfood, or Turkish.'
User: 'in kings hedges area'
System: 'The Ranch is an outstanding restaurant and it's in the King's Hedges part of town. It's in the moderate price range.'
User: 'can i know the address and the phone number'
System: 'The Ranch is located on 100 Histon Road and its phone number is 01223322772.'
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: 'yes id like a traditional restaurant in the expensive price range'
System: 'The Granta Bar is an outstanding restaurant and it serves traditional food. It's in the expensive price range.'
User: 'ok can i have the address and price'
System: 'The Riverside Restaurant is located on University Centre, Granta Place. The price for main courses ranges from 14 pounds 95 to 16 pounds 95.'
User: 'thank you goodbye'

Example Output: Expensive

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 fusion restaurant with a cheap price range'
System: 'The Dojo Noodle Bar is an outstanding restaurant, it serves fusion food and it's in the cheap price range.'
User: 'can i have the address and the location of that er the location of thea area'
System: 'The Dojo Noodle Bar is on Miller's Yard. The price for main courses ranges from 5 pounds 70 to 7 pounds.'
User: 'what area is the address located in'
System: 'The Dojo Noodle Bar is located on Miller's Yard and it's in the Girton part of town.'
User: 'thank you good bye'

Example Output:
Cheap

