Sending multiple pieces of information via rednet?

Hello,
I tried using this exactly but with three variables, is that possible or no, because my main problem is that the messages won't display on the computer. I am trying to make like an airport request system so air traffic control can accept or deny a plane that is going to a runway. Basically, I want it to be, name of player, runway number, type of plane all displayed so air traffic control can contact the person and tell them if they are clear. Can someone help me with this? I am just, confused!

This topic was split from the extremely outdated tutorial found here.

The better option on any somewhat recent version of ComputerCraft is to simply put all of your data into a table and send that table via rednet.

It's rather difficult to comment on why you might be having the problems you're experiencing, without seeing the code you're experiencing it with.