Despite the rise of online booking sites that allow travelers to plan and book vacations on their own, a recent AAA survey found that Americans still see advantages in working with a traditional travel agent. 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?