On the off chance anyone seeing this is interested, I have a solution uploaded
as part of a module I wrote for screenplay and stageplay writing:
https://github.com/cjayross/drama.mkiv/blob/4a9b2576c8630fd03352d95f99456092f6e21190/drama.mkiv#L480
The solution ended up being very detailed and
I'm trying to use ConTeXt for playwriting, and I think it would be best to use
sections for dialog. However, if a dialog's text is interrupted by a page
break, it is customary to restate the character name followed by (continued) on
the following page:
--- open ---
John
My name is