Translation:You are welcome.
As in English, Indonesian also has some expressions to say "You are welcome!" • "Kembali" (from "Terima kasih kembali"). Kembali means "Come back". • "Sama-sama!" "Sama" means "same".
In a comedy movie, We use both expressions to make funny meanings.
A: Thank you! B: Come back. (Then A comes back)
A: Thank you! B: Same-same!
Kembali means to come back while sama-sama means you're welcome/you are welcome. Sama on its own means same, but if you say saya terima kasih kembali that means I am returning the thanks. You could instead of Sama-Sama say Masama, which means the same thing but is very informal Indonesian, just like "Makasih" which is Thank you.
"You are welcome" is what speakers of American English say when someone has said "Thank you". It means something like "No thanks are needed". This is the meaning of "Sama-sama". "Welcome" by itself means that the speaker is glad that the person he's speaking to is here, as for example, "Welcome to our house!" That meaning is "Selamat datang" in Indonesian.