In natural conversation in American English of the 21st century, people use a name only to get your attention or to refer to you when talking to another participant.
"Pat, good to see you. Have you met Sandy?"
"Charlie? Could you explain that bit again?"
Those are natural.
Unnatural:
"Well, Bob, I'm glad you asked."
"Can I get you to sign today, Sandy?"
"Pat, good to see you. Have you met Sandy?"
"Charlie? Could you explain that bit again?"
Those are natural.
Unnatural:
"Well, Bob, I'm glad you asked." "Can I get you to sign today, Sandy?"