Whether an official from her department was present at the Waterkloof Airport to process the passports and travel documents of passengers embarking on the aircraft carrier Z-WPE (a) on its arrival on 16 August 2017 at 19:11 pm and (b) on its departure on 20 August 2017 at 01:19 am; if not, why not in each case; if so, (i) what is the (aa) full name and (bb) professional designation of the official concerned, (ii) what are the (aa) full names, (bb) passport number and (cc) nationality of every individual whose passport or travel documents were processed and (iv) when was the official notified that his presence at the airport is required?