“…Multiple subjects affect man's perception, such as travel agents (McKercher, Packer, Yau, and Lam, 2003), travel agencies (Millánr and Esteban, 2004), tour guides (Pizam and Gang-Hoan, 1996), employees (Ross, 1997), tour group leaders (Wang, Hsieh, and Chen, 2002), etc. Further, different personnel exert an influence on perception to a different degree and in a different way because their roles in service delivery vary.…”