Even if the input is "boy" it will still return "Kai"

Projects Programming
11

String choice;

Void setup () {

Serial.begin (9600);

}

Void loop () {

while (Serial.available()==0){ }

choice=Serial.readString();

If (choice == "boy" ) {

Serial.println( "You are welcome");

}

else {
Serial.println ("Try next time");
}

}

//Above are the lines of code, but it kept returning "try next time" irrespective of the value of choice. Even when choice is "boy"