[speaker001:] Would you please weigh this letter to see what the postage is?
[speaker002:] Do you want to send it by ordinary or registered mail?
[speaker001:] By ordinary air mail, please.
[speaker002:] Anything of value in it?
[speaker001:] A postal order for four hundred dollars.
[speaker002:] In that case, you'd better have it registered.
[speaker001:] Will I be informed when my friend gets the letter?
[speaker002:] Yes, when your friend gets it, he'll sign a receipt, which will be sent to you by mail. Then you can be sure it's been received.
[speaker001:] All right, I'll have it registered, then.