Need the values that the user inputs to be added to the same array as predefined values

I need the values that the user inputs in the boxes to be added to the [people] array, so that they can be typed out on the page with the predefined values object1 and object2, together with if they are of legal age or not. I am unsure if I should be using another method for this, the assignment I received was vary vague.

Im new to coding so please forgive any errors.

JS

let nameElement = document.getElementById("UNameInput");
let faultElement = document.getElementById("errorOutput");
let ageElement = document.getElementById("AgeInput");
let clickElement = document.getElementById("button");
let passwordElement = document.getElementById("PasswordInput");
let corrElement = document.getElementById("output");



clickElement.addEventListener("click", function (e) {

    let feedback = [];
    let people = [];


   let object1 = {
       UNameInput: "Marcus",
       ageElement: 33,
   }

   let object2 = {
       UNameInput: "Cihan",
       ageElement: 35,
   }

   people.push(object1, object2)

   console.log(people)


/*
    people.push(new person1("Marcus", 33));
    people.push(new person2("Cihan", 35));
    */

    if (UNameInput.value === '' || UNameInput.value === null) {
       alert('Name input missing')
    }

    else if (AgeInput.value === '' || AgeInput.value === null) {
        alert('Age input missing')
    }
    else if (PasswordInput.value !== 'IHM') {
        alert('Password is not valid')

    } else if (AgeInput.value !== ''){
        if (ageElement.value < 18) {
                feedback.push ( 
                    `Hi your name is ${UNameInput.value}. You are ${AgeInput.value} years old, which is not of legal age. Have a nice day!`
                );
                e.preventDefault()
            
            }
        else {
                feedback.push(
                    `Hi your name is ${UNameInput.value}. You are ${AgeInput.value} years old, which makes you of legal age in Sweden. Have a nice day!`
                );
                e.preventDefault()
            }
    }

    if (feedback.length > 0) {
        e.preventDefault()
        corrElement.innerText = feedback.join(", ")
    }

    else if (people.length > 0) {
        corrElement.innerText = people.join (", ")
    }
});

HTML

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Inlämningsuppgift</title>


   <!-- Länk till JS-sourcet, det är denna koden som körs--> 
    <script src="JSny copy 2.js" ></script>
</head>

<body>
    <!-- Div för error meddelanden, ifall det skulle vara så att de sker-->
    <div id="errorOutput"></div>  
    
    <!-- P-tag för output av meddelanden, ID-attribut så att vi kan nå den specifikt ifrån JS-->
    <p id="output"></p>

    <!-- Nedanstående del består av 3 divvar, alla har input fält med varsitt ID så att de nås från JS-->
        <div>

            <label for="UNameInput">Name Input</label>
            <input id="UNameInput" name="name" type="text">
        </div>
        <div>
            <label for="AgeInput">Age Input</label>
            <input id="AgeInput" name="age" type="number">
        </div>
        <div>
            <label for="PasswordInput">Password Input</label>
            <input id="PasswordInput" name="password" type="password">
        </div>

    <!-- Knappen som sätter igång JS skriptet, ID så att man kan targeta ifrån JS-->
        <button onclick="addToArray()" id="button">Submit</button>


   
</body>
</html>