This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
If we are not saving unpaid itinerary, then it would be saved after the payment is confirmed. If yes then does saving the itinerary becomes the responsibility of Pay for Itinerary use case or should the control be returned to the Prepare Itinerary use case to allow it to save ?