Or maybe.
“What’s your name, son?”
“Han.”
“Han… what? Who are your people?”
“I don’t have people… I’m solo.”
“-Solo. Approved.”
The Imperial Officer does not care. He here’s ‘I’m blank’, and that’s all he registers. Gotta keep that line moving. So all you have to do is change ‘alone’ to ‘solo’, and Han, in a way, accidentally names himself.