I NEED SOME GUIDENCE WITH UPDATING A COLLECTION OF ITEMS IN A LIST BOX WHEN THE USER CLICKS ON A BUTTON FROM ANOTHER FORM,, i HAVE LISTED THE PROBLEM PARTIALLY. I fIGURED OUT MOST OF THE PROBLEM EXCEPT FOR THE UNDERLINED PART. pLEASE HELP. thIS IS VISUAL BASIC 2005

An airplane has 15 rows (numbered 1 through 15), with six seats (labeled A, B, C, D, E, and F) in each row. . When the agent clicks on one of the text boxes, a second...