Well, Is He?

I just got a wrong number by a 10 year old. Here was the entire conversation

Ed: Hello!
Kid: [background noise, voices]
Ed: Hello?
Kid: [pause] Hello?
Ed: Who's calling?
Kid: Is Ross there?
Ed: You have the wrong number.
Kid: [pause] Hello?
Ed: [angry] Hello?!
Ed's coworkers: [laughter]
Kid: Is Ross there?
Ed: You have the wrong number.
Kid: [background noises, voices]
Ed: [hangs up]

So I wrote a function to emulate his behavior:

public boolean IsRossThere() {
  string greeting = "Hello?";
  string query = "Is Ross There?";
  
  Phone.Say(greeting);
  If (Phone.Hear(anything) == True) {
    Phone.Say(query);
    If (Phone.Hear(yes) == false) {
      return this.IsRossThere();
    }
    Else {
      return true;
    }
  }
}