Actually, it'd depend on the name. In my accent...
Jacqueline would be "lyn"
Caroline,
Rosaline,
Madeline,
Adaline would be "line".
Pauline,
Marceline,
Celine,
Evangeline,
Apolline,
Angeline,
Maybelline would be "leen".
I tend to default to "een" when I see *ine, though, and I've never met an
Emmeline IRL. Don't know where you're from, but I assume that'd be common in the eastern US.