A recent AAA survey found that Americans still see advantages in working with a traditional travel agent, despite the rise of online booking sites that allow travelers to plan and book vacations on their own. The vast majority of Americans (3 in 4) would consider working with a travel agent, and almost half feel that working with a travel agent adds value to their trip. And that's not just among older travelers: Millennials are as likely as baby boomers to say they're planning to use a travel agent for a trip in the next 12 months. So what are the benefits of enlisting the aid of a travel agent?