Thank you for your e-mail and for offering me the position of Graphic Design with A-time Company. And thank you for giving me the opportunity to prove my capabilities with your firm.
I am eager to get started, to meet my new work colleagues.
I want to thank you for the expression of faith in my abilities that you have exhibited by this gesture and will certainly do my very best not to disappoint.
Thank you again for giving me this wonderful opportunity. I am eager to join your team and make a positive contribution to the company.