"That is a true statement." is one that is frequently used around here. It sounds very engineer-y, and has no inflectional or emotional connotations whatsoever. It's about as sterile as a SYN-ACK packet. I heard what you just said, and evaluated it for correctness. Current computation completed, and ready for additional input.
> "Hey, I see that you closed out Ticket #XYZ without any resolution or response sent to the requester."
> "yes" / "yup" / "indeed" / "true"
It's an effective way to sidestep having to pay attention until the person comes up with an actual question or request.