How was Fujifilm Employee's Critical Flight Detected?

We have expanded our staff working 24/7 for precaution against all unusual situations that may occur during the coup attempt on July 15. As a result of the special systems we used  our "who is where" report, we determined our passengers who had a flight that day or were coming to Istanbul from abroad and made alternative flight routes. One of them was Fujifilm's sales representative. By contacting our customer who has a night flight from Russia to Istanbul, we informed him that the airport was closed and that his flight could not be realized, and transferred him to Ankara flight and brought him to Istanbul.