Even with the same line, the meaning is different when the person who said it is different.

Is that so...?

Take Asashio-chan for example.

Commander, there's something I have to talk to you about. Do you have time?

It feels like a confession and it gets the heart beating.

Now Katori-san with the same line.

Admiral, there's something I have to talk to you about. Do you have time?

True...I get quite the threatening feeling when Katori-san says it...