Dear [Name], Thank you for reviewing the proposal and sharing your concerns regarding the timeline. We understand the importance of meeting the agreed objectives promptly. However, based on the scope of work and the resources required to deliver the expected quality, we believe the current schedule presents a significant risk to successful completion. To address these concerns while maintaining the proposed deliverables and quality standards, we recommend extending the timeline by two weeks. This adjustment would allow us to complete the work thoroughly, incorporate feedback, and reduce the risk of delays or rework later in the process. Please let us know whether you would be available for a brief call this week to discuss the revised timeline and confirm the updated milestones. Kind regards, [Your Name]