Why was I quizzed about my activities in Colombia by the air-line staff prior to check-in?

At the queue for check-in at El Dorado airport in Bogota, all passengers were submitted to a series of questions by air-line staff (Delta) before reaching the check-in desk.
The questions I was asked were along the lines of "What cities did you visit?", "Can you name your hotel in Bogota?", "What national parks did you visit?" etc.
It wasn't a big issue at all, I'm just curious as to why the air-line staff (the air-hostesses) seemed to be asking these sorts of questions. I doubt they were customer research as my answers were not recorded and the questions held up the progression of the queue. I also had to present my passport. This was not at any security points at the airport either.
Why did the air-line staff want to ask these questions?
Pictures about "Why was I quizzed about my activities in Colombia by the air-line staff prior to check-in?"



Do You Still Need a Migracion Colombia Check Mig? (Colombia Travel Restrictions Update 2022)
Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.
Images: RF._.studio, Amina Filkins, RF._.studio, Ketut Subiyanto