What is the subject line for this email?

Ken, With your permission, Harry and I will plan to bring our golf clubs on the airplane on Tuesday. I plan to buy one of those little traveling golf bags (very small) and carry only about 5 or 6 of my clubs with me. Mick may or may not do the same. It's your call if this is OK for the plane and whether or not you bring yours. This way when Harry and I get to betting on the game, we will not have the quality of the rent clubs as an excuse for the quality of our game. John

Subject Line:
The coming trip on May 29th