Metal items such as mobile phones and keys need to be put in baskets for security inspection. Don't bring sharp tools such as knives, nail clippers, lighters and eyebrow tweezers, unless you check in, liquid things are also troublesome. The problem with the window is to change the boarding pass. If there is a window seat when changing the boarding pass at the airport, she can change it. In fact, the requirements for flying are basically the same.