How should i answer the question why are you for right person for this job?

If you do not know the answer to that question then you are not!

If I were interviewing you I would want to see you talking about the job with enthusiasm: your own enthusiasm, not Words put into your mouth by someone else. Another person's Words will not be convincing. You also need to show that you have the right skills for the job, or at least the aptitude and enthusiasm (that Word again) to acquire them.