I recommend you install the mod "Stop the Ped". It will allow you to have many more interactions with pedestrians, as well as calling for police transport, or tow truck.
As far as talking to dispatch, that is going to be "Grammar Police".
I do not use LML. You do not need it.
I highly recommend you check out a youtube channel called Gaming 4 Life. He has more tutorials than you can shake a stick at, and they are excellent.
[Make sure you install Open IV and WinRar -- you will need both]
Find what you want to install and follow his tutorials on youtube.
I recommend making small changes and testing them before adding lots of things.