After all, on second thought, how could Dave possibly did this ridiculous drama on purpose. What was Dave holding her for? Wasn't it Celine who volunteered to come to Deve's company? The man just asked to come, without coercion and Celine came consciously.
"Hemp ... Is there no other way? I mind waiting for Mr. Dave in his office."
In order to maintain Dave's good name, Celine called him 'sir', considering that she was currently still in the office area. Also, they didn't have a special relationship like friends or the like. So Celine should have called Dave 'mister' as the formal one.
But who would have thought, it actually reaped the admiration of Dave's trusted people. The two subordinates were eager to tease Celine, with a joke, asking her not to be shy about calling Dave with their romantic calls, but seeing Celine who was too polite and a little stiff, they both discouraged.