There is nothing I know but travel agency business model seems at-risk or sth you cannot rely on because of platforms like booking.com or airlines selling their own ticket, and overall ability to do what you do through the phone for less cost. I don't think the generation the is coming will use travel agencies bc it's just expensive and a hassle. So I'd really reconsider or at the very least do a ton of research on how I can make it work before starting