If really nervous about it, and don't want to let on that you haven't flown before, buy yourself the cheapest round trip ticket from Albuquerque to wherever, and fly that route. It doesn't matter which airline. Be observant during that flight, listen to the announcements and gain from the experience.
Then when the business trip comes, you will know broadly what to expect. If the trip is on a different airline, it's absolutely fine to say you haven't flown that airline before - even the most experienced flyer hasn't flown every airline - and the others will be delighted to fill you in on the quirks of the airline you are flying. But, the key is that you will be familiar with the general goings-on.