Yes, sounds like a very competent agent, so definitely worth the praise.

A3's website usually takes the fare out of availability once you go through to the payment page. I've often done dummy bookings after logging on and noticed that the flights are listed in MMB. They usually clear by the next day.

By the way, this was quite useful when they changed the terms & conditions of the upgrade coupons so that all U,P,T fares were not eligible. You could go on the website and do a few dummy bookings to knock out those fares and get the higher (upgradeable) fare buckets! Shortly after they did a u-turn, so those U,P,T fares are upgradeable if you select Flex fares, which makes it a lot easier.