Would you please weigh this letter to see what the postage is ?
neutral
user
Do you want to send it by ordinary or registered mail ?
neutral
assistant
By ordinary air mail , please .
neutral
user
Anything of value in it ?
neutral
assistant
A postal order for four hundred dollars .
neutral
user
In that case , you'd better have it registered .
neutral
assistant
Will I be informed when my friend gets the letter ?
neutral
user
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 .
neutral
assistant