I did a little translation on the plane yesterday. I don’t know Spanish well, but I understand most of it and can speak a little when I have to. There was a mother and daughter — Peruvian (I think, judging by accent) — sitting across the aisle from me. They had changed seats or were in the wrong seats or something, and that annoyed the flight attendant for some reason.
He first asked the mother, “What is your last name?” She didn’t understand. Then he tried the daughter, repeating it several times, his voice rising in volume each time as if that was going to help. “What is your last name?”
I dredged my brain and came up with, “ยฟCuรกl es su apellido?” Instead of thanking me, the flight attendant looked annoyed at me too. I think he was enjoying hassling them. Some people are just like that. But the daughter said her last name and the flight attendant went on his way finally.