I think Lina is not a physical person or maybe she is? From what I observed or from research as well, Lina is in Jobstreet because she is a Personal Career Job agent. Her role in Jobstreet is to find you jobs that correlates to your experiences and backgrounds. Based on your experiences you noted on your resume, she will connect this to the specific qualities a future employer needs. It should not be the exact qualities but also some similarities to the people who experience doing the job. Lina gives you an information of job availability and openings. It let you know when someone viewed your profile and if you are invited for an interview. She helps you get a job specifically and helps the employer to get the right people fits to the job they are offering.