"In this situation, my first step would be to remain calm and recognize the discrepancy. Ignoring or downplaying the mismatch would not be helpful. I would express regret for the inconsistency and propose a solution to address it. For example, I would suggest a revised plan that aligns with the CEO's expectations, adjust the plans accordingly, and establish a new release date. Additionally, I would make it a priority to have a personal discussion with the CEO afterward to fully grasp their expectations, apologize for the oversight, and ensure them that it will be corrected. Lastly, I would implement a review process to closely monitor the project and prevent similar issues from arising in the future."