"Yukiko," Hikari notes, so that the captured student's name isn't missed in the back-and-forth of the conversation.  Then she takes a moment to sip her tea, conveniently hiding her frown--she still feels sort of guilty that she's out and about while Yukiko is lord-knows-where--before answering Jessica, "H-Hai, that sounds right.  To be truthful, I didn't notice when it happened at all, I guess I was...  distracted..."