Regretably, you are number 4 in the list of priorities after 1 - fly the aeroplane , 2 - communicate with ATC , 3 - communicate with the cabin crew.
However I , and any of my colleagues who consider themselves professional, will always try to give a quick ( hopefully reassuring )P.A. along the lines of , "don't worry we are not all about to die , Oh and by the way we are now diverting to Timbuhktu, where buses will be along in about . . .Oh 5 hours or so."