Description : The Econo-Airlines eet consists of one plane with a seating capacity of 12. It makes one ight daily. The aircraft seating is arranged in 6 rows with 2 seats per row. The program uses an array of 12 structures. Each structure holds a seat identication number, a marker that indicates whether the seat is assigned. the last name of the seat holder, and the rst name of the seat holder. The program is to displays the following menu. Use a do while loop and a switch to make the selection. The selection must NOT be case sensitive. Each selection should call a different function. To choose a function, enter its letter label: A Display ALI. seat assignments {including Empty}. B. Show ONLY 3 list of empty seats and show total of empty seats (3. Show ONLY the assigned seats with name of person and total assigned. D. Assign the customer to an empty seat. E. Delete ONE seat assignment. F. Delete ALL seat assignments. Q. Quit program. 0 Note all data must be saved to a le. 0 The program must successfully execute the premise of the menu. 0 Data is to be saved to a file between runs. When the program is restarted, it must rst load the last status. Do not use global variables. (except for the structure denition and data 1.90]