I received a RFE asking job offer: "Please also submit a letter of employment attesting to your offer of proposed employment. This letter should be written on the company's official letterhead and cite the date you will begin working, whether the position is permanent and full-time, a description of the position, a description of the position you currently hold for the company (if any), and the offered salary. Likewise, the employment letter must establish that you continue to work in your field to benefit prospectively the United States in national scale". May I reply saying I am finishing my dissertation at school and I really started the job search late December after my EAD was approved. I've had some interviews but so far I do not have any job offer at hand. What should I do?