So continuing from @Cap_J’s request, I think having a little “Good [Time of Day]” when you first contact tower for a clearance would be great.
It could sound like this:
“Heathrow Tower, Speedbird 128 is on the ILS Runway 27L”
“Speedbird 128, Heathrow Tower, Good Morning, Runway 27L Cleared to Land”
I think this would be a great to have in the game although its not a neccesity.