+1. I have never been scared of flying but have known several people taking those courses with other airlines and it usually seems to work very very well.

It is worth remembering that in the case of genuine phobias, we invariably misunderstand what would make us feel better. It is part of the 'trick' our subconscious plays on us as part of the phobia.

In that sense, I would join others in thinking that giving her a 'prototypical' sense of the cabin crew routine would be counter-productive because likely deviations would freak her out more than anything else. Imagine that your friend "knows" that after the main meal the crew serve tea and coffee but that as it happens, there are turbulences and the captain asks the crew to interrupt service. Your friend would (1) feel the turbulences, which usually freaks out people scared of flying like crazy, and (2) suddenly see the routine she expects interrupted and the crew hastily storing the trolleys. She'd probably be convinced she will die within the next 30 seconds and feel like jumping out of the window! By contrast, if she informs the crew she is scared of flying and would like to understand how things progress throughout the flight, I'm sure one of the crew will take care of her throughout the flight, give basic explainations, and if, say, a service was interrupted because of turbulences or timings changed because of a shorter or longer flight time or something else the crew would adapt their explainations instead of your friend persuading herself that 'there must be something wrong'