After booking a flight with KLM you can choose advanced facilities afterwards by visiting KLM official website. If you want to know about the benefits of KLM manage booking for the passengers go through the points explained below:
You need to visit KLM manage booking section for adding all the above explained advanced facilities. You can also dial KLM manage booking number and ask the customer support executive to make preferred changes in your flight.
KLM has provided very best method of Manage Booking Process in this article..