airplaneHelp!

import java.util.Scanner;
public class airplane{
    public static void main (String[] args){
        String []seats= new String[5];
        int []age= new int[5];

        int passAge;
        String passenger;
        int seatNo;
        for (int a=0; a<seats.length; a++) {
            seats[a] = "x";
            age [a]=0;
            System.out.println(seats[a]);
            System.out.println(age[a]);
        }

        for (int i=0; i<seats.length; i++) {
            Scanner userInput = new Scanner(System.in);
            System.out.print("Enter a seat number: ");
            seatNo=userInput.nextInt();
            while (seats[seatNo-1]!="x"){
                System.out.print("Seat taken choose again");
                System.out.print("Enter a seat number: ");
                seatNo=userInput.nextInt();
            }

            System.out.print("Enter a passenger name: ");
            passenger=userInput.next();
            seats[i] = passenger;

            System.out.print("Enter a passenger age: ");
            passAge=userInput.nextInt();
            age[i] = passAge;
        }
        System.out.print("All seats are booked up!");
        for (int b=0; b<seats.length; b++) {
            System.out.println("Seat "+(b+1)+" "+seats[b]+" "+age[b]);
        }
    }
}