I would need a lot more information than this youtube and the scant reporting done on CeeCee Lyles, and her husband Lorne. I don't know the source of this audio, or whether or not Lorne has proof (like an electronic log of his cell phone captured IDs with dates). It could be a stewardess helping CeeCee make the call and saying "you did great." Or it could be someone next to her saying that about something one of the other passengers had just done.
There may be interesting data here, but it needs a lot more scrutiny than this. The mere fact that the video's producers are jumping to all sorts of wild conclusions without more information is also helpful in determining how we should treat this material.
On the video's information side bar, I see a link to Info Wars, where anything can become dramatic information with the slightest amount of imagination.
Not a matter of being right or wrong here. And I definitely distrust the official 9/11 story. I want real, hard facts in building the case. That's what it takes to convince the undecided now.