With this question, the interviewer is asking you to explain why you are a good fit for their company. If you cannot properly answer this question, it can appear that you are not confident or serious about the position. Highlight your best skills that relate to the position you are applying for. If you have received any awards or recognitions for your accomplishments in relatable positions, mention them. Show enthusiasm about joining and contributing to the company. This is your chance to sell yourself so make it good.