puppeteer-registration.js

const puppeteer = require('puppeteer');

browser = await puppeteer.launch({
    headless: true,
    slowMo: 80,
});
page = await browser.newPage();

await page.goto('http://example.com');

await page.waitForSelector('#tickets');

await page.hover('#tickets > div.container > div > div > div > h2:nth-child(5) > button > i')

await page.waitFor(2000); //make sure I really want to buy

await Promise.all([
    page.waitForNavigation({}),
    page.click('#tickets > div.container > div > div > div > h2:nth-child(5) > button > i', {
        button: 'left',
        delay: 200
    })
]);

await page.click('#tito-tickets-form > div.tito-submit-wrapper > button')

await page.waitForSelector('#tito-iframe');

const frame = await page.frames().find(f => f.name() === 'tito-iframe');
await (await frame.$('#registration_name')).type('Taylor', { delay: 100 });
await (await frame.$('#registration_name')).type(' Swift', {});
await (await frame.$('#registration_email')).type('taytay@gmail.com')

browser.close();