How to stop Siri from responding with mmm, hmm and uh huh on iPhone?

I purchased a new iPhone and Siri is now responding with mmhmm and uh huh. It is so annoying. I don’t let my kids talk to me like that I don’t want my phone to treat me like I don’t matter. I researched it before posting here and the only response is that I have to say my entire request before Siri speaks. First, Siri is not that reliable I prefer to know he is listening before I speak. Second, I cannot talk fast enough to prevent the annoying sounds. Third, I cannot hold down the side button because I am driving and it is illegal in my state for me to hold my cellphone while driving. Fourth, why did the responses have to change? I was perfectly happy before the latest update. I want to know a true fix for this. Please let me know if I have to report it elsewhere. Thank you

[Re-Titled by Moderator]