So you want a receipt that shows the value amount of the voucher in addition to the amount you paid with your CC?

Any receipt printed out at the airport will just show the amount you actually paid; however on the receipt will be printed the fare ladder which will show a breakdown of the voucher amount, each tax and how much you paid with your CC. Not sure how this will help you in getting the value of the voucher reimbursed to you by your work though....