Dear Sir/Madam,
I have been in this industry for 3+ years and such jobs are my daily practice. You can see that I have done such kind of projects earlier, ratings/testimonials can be seen on my portfolio. I can assure you that if you work with me once, you will always work with me for these kind of projects.
I can start working on this immediately, 100% quality and timely delivery assured.
Looking forward to hear from you.
Thanks!