Greeting between two people

greeting.rs

trait Greetable {
    fn greeting_for_other(&self, other: &Self) -> String;
}

struct Person<'a> {
    name: &'a str,
    age: u8,
}

impl<'a> Greetable for Person<'a> {
    fn greeting_for_other(&self, other: &Self) -> String {
        return format!(
            "Hi, {}; I'm {}, and I'm {} years old!",
            other.name, self.name, self.age
        );
    }
}

fn main() {
    let p1 = Person {
        name: "Sebastian",
        age: 25,
    };
    let p2 = Person {
        name: "Simon",
        age: 24,
    };

    let s = p1.greeting_for_other(&p2);

    println!("{}", s);
}