Subject: Missing attachment for today's meeting

Dear Mr. Lee,
Thank you for sending the agenda this morning. I received your email, but I could not find the attachment.

Could you please send the file again when you have a moment? I would like to review the numbers before the 2:00 p.m. meeting.

Best regards,
Nina Carter

Reply:
Dear Ms. Carter,
Thank you for letting me know. I apologize for the mistake. I attached the file to this email.

Please confirm that you can open it. If there is still a problem, I will bring printed copies to the meeting room.

Best regards,
Daniel Lee