I do think [name_f]Carlisle[/name_f] could work for a girl, it’s got a similar [name_m]British[/name_m] surname vibe as names like [name_m]Spencer[/name_m] and [name_m]Bennett[/name_m]. And [name_f]Carli[/name_f], [name_f]Callie[/name_f], or even [name_f]Isla[/name_f] would make suitable nicknames.
I also like the idea of [name_f]Carli[/name_f] as a nickname for a boy [name_f]Carlisle[/name_f] too.