Sign inside the office washroom - Lost. And found?

Was too small to take a pic of, but this is what the note said:

Hi, I lost my phone, sony erricson 550i, white, yesterday evening.
It was a new phone and I had all my information on it. I really miss it. If you find the phone please return it back to me. You can actually keep the phone if you want to but atleast give me the SIM card back
If you have found the phone then please give it to the receptionist.
Thank you and have a nice weekend