Originally Posted by oliver2002

LX is moving to a new RM system this weekend so things will get even more intricate.. Amadeus Altea can not only show different availability to different markets, but also show inventory to certain office IDs: for example Siemens corporate can access lower priced business booking classes or UA Mileage Plus can see F award space that is not available to AV Lifemiles.

ITA doesn't run a inventory query on the real live system each time you run a search, the airlines & GDS operators would not be very happy about that, especially when running it for a free tool where there is a clear statement that there will be no sale from it.

If a smart call center agent waitlists your enquiry (into P for example) it usually clears shortly afterwards if it was offered for sale in a different market. You can also call the airline in the US, the agents picking up the call there are usually logged in with an office ID of the US market and can also see the inventory. You could also waitlist with the european agent and then call the US call center and say if they can check if they have availability now. Smart TAs have multiple office IDs in various markets for that.