Tecniques for main task

I have chosen to film and base the plot on the movie flightplan.

Here is some tecniques I will try to incorporate in my filming use din the movie flightplan:

 Here the main character (pictured in black) is worrying that she has lost her daughter, when the air hostess is insisting that she was on board alone, the main character looks distant, this is the type of shot I would like to have.