They're giving you enough information to get the itinerary through the website no? If so then I see no reason why I wouldn't just forward the email for the sake of convenience.
That's true - okay good idea - I'll see if I can whip this up. Any ideas on the best way to receive and have a system to grab and parse email?
One method would be to setup a normal email address (even something like gmail) and on the server setup a cron job that connects to it via imap and downloads the messages. Probably not the nicest solution, but it might be easiest.