I try to, I don’t always succeed. Somedays I am just harried and it’s my 6th business call out of work, or I am pressed for time etc.
I think it adds a human element. I remember hearing somewhere that you can never be too busy to properly greet someone. I found that it is true.
Besides most of those people do want human contact, interaction beyond transaction too, most of the time, if only to break up the grind. You can usually tell by their voice. I also practice this in grocery stores etc keep it simple if hurried but why not.
I am grateful when I don’t have to deal with menus and autobots etc. I might as well enjoy the true benefit of talking to the person.
It also can be helpful in reference to repeat calls etc. “Yes, I talked to Mark on the 16th in reference to this and he got his manager Dorothy to waive…. fee, he said he made a note of it…”