Lost Property

A: I lost my wallet. I had my credit card and passport in it.  

B: What kind of wallet is it?

A: It’s black, about this side, with the initial WM on the inside. 

B: Do you remember when did you see it for the last time?

A: Yes, I just saw it in my bag yesterday afternoon.

B: Oh, then how have it gone?

A: I don't know either. It is lost now. Could you help me find it?

B: Sure. We must unfold all of our baggage and search for it.

A: Thank you. I hope we could find it.

B: Otherwise we have to make touch with the Chinese Embassy.