What will they ask me when I buy a SIM card at Da Nang airport?

The whole conversation: Landing at Da Nang airport

You walk out of arrivals. First stop: a SIM card kiosk.

1. You say
   Chào em! chow em Hi! (to someone younger)

   Chào plus a name or anh, chị or em is how people really greet each other, and it works for goodbye too. Xin chào is the textbook version, used mainly by announcers and tourists.

2. You say
   Tôi muốn mua sim. toy moo-un moo-ah sim I want to buy a SIM card.
3. You hear
   Anh cho em xem hộ chiếu. ang chaw em sem hoh chee-oh Can I see your passport?

   SIM cards are registered to your passport, so have it ready.

4. You say
   Dạ, đây. yah, day Yes, here you go.

   Dạ is the polite yes in central and southern Vietnam. You will hear it constantly.

5. You hear
   Anh dùng mấy ngày? ang yoong may ngai How many days will you use it?
6. You say
   Bảy ngày. bai ngai Seven days.
7. You hear
   Hai trăm ngàn. hai chahm ngahn Two hundred thousand (dong).

   Prices are said in thousands: 200,000 dong is "hai trăm ngàn", often written 200k.

8. You say
   Đổi tiền ở đâu? doy tee-en uh dow Where can I change money?

   Put any place in front: Grab ở đâu? Where is the Grab pickup?