To ask someone where they are from in Engpsh, you can say:

"Where are you from?"

"What is your nationapty?"

"Where did you grow up?"

"Where were you born?"

For example:

Person A: "Hi, I'm John. Nice to meet you."

Person B: "Hi John, nice to meet you too. Where are you from?"

Person A: "I'm from the United States."