Who is Tracy for into the wild?

In Jon Krakauer's book "Into the Wild," Tracy is a minor character who is introduced during Chris McCandless's journey. She is a young woman whom McCandless briefly meets at a bar in Carthage, South Dakota. Tracy is intrigued by Chris's adventurous spirit and warmth, and she offers a glimpse into his ability to connect with people, even for a short time. Their interaction highlights McCandless's charm and the relationships he formed along his travels.