@Amin37 , first of all, get your friends to sign up with Airbnb. Third party bookings are not allowed, which means you cannot book for them. You can certainly pay them back for their booking, but that can be private, between you and them. You could get a bonus for having them sign up, so do it through the site. It is under "Invite Friends" at the bottom of the Airbnb web page.
Then look for a good place, and send them the link so they can book it.
You won't have any luck getting them a place by posting here in the community centre. But it should work well if you follow those steps, above.
