Imagine you lost one of the items below when you were travelling by Metro. Report the incident at the lost property office.

Dear Lost Property Office, I am writing to report a lost item. I believe I lost my laptop while travelling by Metro earlier today. The laptop is a silver color. It was in a black carrying case. It has some personal documents and work files on it. I think I lost my laptop when I was helping an old lady to get off the train. I noticed it was missing shortly after. I would be grateful if you could check if it has been turned in. You can contact me at [Your Phone Number] or [Your Email Address]. Thank you for your assistance. Sincerely, [Your Name]