A tale of 2 MAs

All of us must have received some email related to discussions between customers and help desk / technical support teams. Here is one such conversation, to be added to the already entertaining list that we might have gone through-

(Note - The situation is real. However, the names of the parties involved have been changed to protect their identity.)

Situation - AK, the Functional Consultant from Support team, is working on an issue logged by Mirza Ali Baig. After sometime, he sends a message to Mirza Ali Baig on messenger.

AK (to Mirza Ali Baig) - explains the reason why the problem occurred and what should be done to fix it.
AK - I have sent you an email too on this. Please let me know if you are fine with it so that I can close the ticket.
MAB - Ok. Let me check.

After a few seconds...

MAB - I haven't received your email as yet. You must have sent to Mirza Ali.
AK - Oh... so you and Mirza Ali are different people???
MAB - yes

What a brilliant question!!! Even though MAB himself says that the mail must have been sent to MA, AK still wants to confirm if MA and MAB are different people.