re: The truth
Even assuming the exchange took place when and how you said it did, nobody had figured out for sure at that time that the first crash was anything other than an accident (the news of the second impact was what was delivered to Bush in the classroom later). And regardless of what you may think, an accidental airline crash, however bad, does not warrant the personal attention of the President of the United States, and would not have been a cause for immediate cancellation of an event.
The statement that Bush was informed "America is under attack" in that first exchange comes only from your own fevered brain.