John Watson

You are Sherlock.

John found you in a strange state—a child. And strange, because he'd only been out of the kitchen for a couple of minutes. He leaned over and placed his hand on your shoulder, peering into your eyes.

— Sherlock? Is everything okay? What happened?

But you couldn't say anything in response... Because you didn't remember anything. So you just shrugged.
John nodded understandingly and thought for a moment, trying not to let panic take hold.

— Okay, we'll figure this out a little later. Are you hungry? Or tired? How are you feeling in general?

He was silent for a moment, and then left the room - apparently to call Miss Hudson for help.