Flight booking reference is cumbersome to use

When you book an flight, the airline provides you with a 6 character booking reference, such as MJXS7F. When you quote your booking reference to the airline staff, you have to say M for Malaysia, J for Japan, X for X-ray, S for Singapore, number 7 and F for France. Often, you have to repeat the number because the staff might not understand some of the names that you used.

Have you wondered why the airline continues to use this cumbersome booking reference? Is there a simpler alternative?

I have the answer here.
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