Dear Khun Sarutaya,
After careful consideration, we are no longer able to offer the Accounting Assistance at this time due to an internal staff rearrangement which fulfilled that position's duty. For this reason, we are not able to offer you employment with our company.
However, your resume has been preserved and placed on file for future reference. If a suitable position presents itself, we will be pleased to get in touch with you. We thank you for your interest in our company and I wish you the best in your career.