Code in C++

. Airline seating. Design and implement a program that assigns seats on an airplane. Assume the airplane has 20 seats in the first class (5 rows of 4 seats each, separated by an aisle) and 180 seats in economy class (30 rows of 6 seats each, separated by an aisle). Your program should take three commands: add passengers, show seating, and quit. When passengers added, ask for the class (first or economy), the number of passengers travelling together (1 or 2 in first class; 1 to 3 in economy), and the seating preference (aisle or window in the first class; aisle, center or window in economy. Then try to find a match and assign the seats. If no match exists print a message. Follow object oriented design and UML principles