Hi Hiring Manager,
I am Amanda, and I am interested in the part-time customer service representative position at Boutique Hub. I saw the job posting on [website name] and I think I would be a great fit for the position.
I have experience working in customer service, and I really enjoy helping people. I think that Boutique Hub is a great company, and I would love to help customers find the products they need. I am also a quick learner, so I can learn about your products quickly.
I am available to work [days and hours], and I am willing to work more hours if needed. I am also available to start immediately.
Thank you for your time, and I look forward to hearing from you.
Sincerely,
Amanda