KLM Airlines passengers will soon be able to check in, get flight updates, make travel changes and talk to customer service reps straight from Facebook's Messenger chat app. KLM is the first airline and the first major European partner for Messenger, which is used by 800m people around the globe. Facebook launched Messenger for Business one year ago to pursue "conversational commerce," the notion that we will all soon be talking to — and eventually transacting with — businesses over messaging apps. Since then, businesses in a growing number of industries have tried out the service to chat with customers. Tjalling Smit, senior VP of digital for Air France KLM, says with Messenger his airline seized the opportunity to reach passengers on one of the apps they use most frequently. <br/>