this is your captain speaking. My name is xxx and assisting me on the flight deck is first officer xxx.
Assisting you? So that's what these grubby young first officer types are doing up there. I
was wondering. Presumably s/he is holding the PA card up for you to read, in between mixing post-flight drinks and polishing your shoes.
I think passengers would like to know there are TWO competent pilots in the flight deck, rather than an organ grinder and a monkey. It saves the looks of horror when you leave the flight deck for a comfort break!