As you know, this thread originated in this forum in October 2015. I posted this in #25:
I mentioned this topic to a good friend who is a travel agent. She said they get lots of calls about booking a particular kind of flight to Australia. "I don't want the flight that stops, you know? I want the one that goes straight there. I don't want the flight that takes 24 hours."
I'm told that all agents are used to this.