I am not in the developer world but I'm trying to nail down some details related to a potential project I'm considering. I'm seeking some guidance to better understand what information is offered through travel companies' APIs (Delta, United, Hilton, etc.), which would ultimately be a big driver of the solution at hand. If there are any developers reading this that work or have worked at a large US airline or hotel or have knowlegede of their consumable API data, please reach out to me. I have a couple of quick questions.

Much appreciated!