Draw it properly

Consider the following requirements for the proposed software "Online Appointment System" A. The company will publish the job-openings on their websites. B. The applicants concurrently send their application letter and their resume to the Human-Resource (HR) department. C. The HR will check the applications and filter the applicants. D. If qualified, the HR will send-notification to the applicant. E. A "sorry note" will be sent to unqualified applicants. F. The applicants will choose the appointment for the job-interview from the website. G. The HR will sort the appointments from the website and forward the schedules to the company. H. The applicant will be interviewed by the company on the selected appointment date. From the above scenario, draw the SEQUENCE DIAGRAM