Told they are "booking agents" not "travel agents".??
That's true. Many will handle only one kind of travel, such as cruises. A travel agent, or more appropriately, a full-service travel agent, will do it all for you.
I don't know if this helps you, yet you can look at some Internet booking sites for air travel to see what your choices are (along with pricing), and then go directly to the airline's site to book.
As for the separate section within the CruiseReviews.com forum, I moved this thread to our Embarkation Ports, Hotels, and Transfers section and added air travel to the description. Hope that helps.