This is my life:
(This happened on the phone, by the way)
Me: "Alright, that will be row L, seats 13 and 14."
Patron: "Row O, got it, thanks."
Me: "No, that was Row L, L as in 'love'."
Patron: "O as in 'love', alright."
Me: "........ no. Not O as in love. L. ELL. L as in 'Larry'."
Patron: "...... there's no O in Larry."
Me: "THAT'S BECAUSE IT'S NOT AN O IT'S AN L."
Patron: "Oh. L."
3 hours ago