Zack smiled innocently. "It's okay. We’re partners after all." As he led Isabelle out, John laughed out loud. Although Zack was sometimes a little obtuse, he was quite quick-witted most of the time.
John had no idea how long Isabelle stayed in the Constance Group since he had been busy with his work until it was time to clock out.
As he left the office, Zack came out of his office as well, and the two of them met in the corridor. John asked him, "Where’s Isabelle? Is she still here?"
Zack frowned. "Wait a minute. I'll go take a look."
After all, it was impossible for him to pay strict attention to Isabelle's movements all afternoon.
Then, Zack went to the meeting room and glanced in before shaking his head toward John from a distance away. His gesture meant that Isabelle had already left. Thus, John just nodded and went on to clock out.