Not sure of your Id-90 or ZED ticketing procedures at US but at AA I think we have a pretty good system. We have a number that we call that is dedicated to employees for pass travel. The agent at the other end knows what we get on other carriers. The employee gives all the required information which the agent enters into the computer. After entering all the information the agent gives you the cost and a record locater (a set of letters). You take that record locater to an AA ticket counter where all the agent has to do is enter that locater which generates the tickets then you pay the required amount. It is very easy for the employee and the agent. It might be something that US and it's employees should look at.