I THINK if you fall into the delusion that if you "help" the company out of a jam, they will return the "favor" in the future you're in for a rude awakening. My philosophy is that if taking a trip (when I have an option) is beneficial to me and the company, great. If I take a trip or pick up the phone I am not expecting some type of favoritism in the future. Take the "personal" out of it. It's business. CS's business is to utilize an asset, YOU are the asset, and to make sure flights are properly staffed. Your business, dependent on your desires, is to rack up as much credit as possible in the fewest days possible while achieving the most time off. However, the deck is stacked against you. If you don't take this personally you're life will be better.