คุณ - ทาน - อะไร - มา (ค่ะ/ครับ) ? Khun Taan Arai Ma ? (Kha<for girl> / Krub<for boy>)

Hi, You can say; Khun Rub_Pra_Taan Arai Ma Kha(girl)/ Krub(Boy) ? or Khun Kin Arai Ma Kha/Krub ? Two interrogative sentence, The meaning is same but when you pronounce "Rub_Pra_Taan" it will make polite conversation more than "Kin"