How do I catch the plane?

Hint 1 of 20:

There's no way in heck you can reach the plane in time.

Hint 2 of 20:

So improvise a bit.

Hint 3 of 20:

Maybe if you could get the air traffic controllers to deny take-off, you
could make it.

Hint 4 of 20:

Now, to find a way to get there...

Hint 5 of 20:

Head south from Air Zalagasa desk.

Hint 6 of 20:

Climb the pillar.

Hint 7 of 20:

Open the grate.

Hint 8 of 20:

Go up four times, and then go east.

Hint 9 of 20:

Well, here are the controllers!

Hint 10 of 20:

Tell them to stop the flight.

Hint 11 of 20:

Type CONTROLLERS, STOP FLIGHT 42.

Hint 12 of 20:

Then get out of there quickly!

Hint 13 of 20:

However, there is still no way you can find the gate for the plane.

Hint 14 of 20:

Maybe if you made some people happy, they'd take you there.

Hint 15 of 20:

Think of something that's annoying everyone at the airport.

Hint 16 of 20:

Why, of course!  The MUSIC!

Hint 17 of 20:

Climb down the vent, to the pillar, where the speaker is.

Hint 18 of 20:

Disconnect the speaker.

Hint 19 of 20:

To do this, pull the red and black wires.