We recommend you combine your cover letter and resume into a single document before you start the job application process for the City of Phoenix. Hello Employer, Thank you for the offer of employment, I accept.Please let me know what next steps will be. Our Four-step Application Process. One: An application is submitted for an open position and, after the job posting close date, all applicants are reviewed. A cover letter aims to introduce yourself and describe how your specific skills, abilities, and experience match the organization's needs. I am writing to confirm my acceptance of your employment offer on April 20 and to tell you how delighted I am to be joining XYZ Corporation in Chicago. ADOA Human Resources.