Off the top of my head, I think that conversations with the President should be kept rather short. He is a terribly busy man, and Delana knows this. Thus, she's reluctant to 'chat'. Instead, she give a report and awaits instructions. In latter scenes, when she is in the physical presence of him, she can be more friendly.
As for the Panama Canal. The news article (byline from, say, The Colon Times or the Panama City Register -- both fake names as far as I know), should mention the huge loss in revenue as shipping slows nearly to a stop, the formation of ice on the shores of Gatun Lake, and the massive layoffs of lock workers as a result.
I think the tension between Delana and her dad is just about right. You don't want either one of them to get too exasperated with the other, but at the same time Delana wants to know that she's gotten this job without her dad pushing from the other end. Maybe a solemn promise from him to her?
Right after Delana hangs up on her dad, she could review her new orders (she had to receive them as written) and perhaps wonder if she is up to the challenge they represent. She's talked to the President and gotten his assurance, She's talked to her dad with mixed feelings, now it is just her and her thoughts: Am I good enough?
~Tom