Hi,I have a buddy pass to travel from CVG to FCO later this week. I have never used a buddy pass before. My current flight plan is CVG --> ATL --> FCO.Is there a way to estimate probability of getting a seat ?When I use the main Delta web-site and look at purchasing seats on these flights, they are almost full in coach on both flights. On the other hand, when I look at purchasing tickets on CVG --> EWR --> FCO, those flights are approx half full in Coach.So, is there a strategy that is used to make travel plans in the days preceding the flights ?Is there a better information system than using the main Delta web page and looking at seat availability on different flights ?Do I have the ability to make changes to my flight plan, or is that done only by the Delta employee who provided me the buddy passes ?And ... do I pay a change fee for making changes in the last few days before the flights ?Thanks for your advice.