Example for sending confirmation email for Google Forms. You still need to manually configure the trigger and attach it to onFormSubmit.

google_form_submit.js

// Code under Public Domain.
function onFormSubmit(event) {
  // event.responses - FormResponse
  var response = event.response.getItemResponses();
  // Update 5 with yout email field.
  var recipient = response[5].getResponse();
  // Update 0 with your name field.
  var name = response[0].getResponse();
  // Email address only of owner of the form.
  var owner = 'MYEMAIL@gmail.com';
  // Content of main confirmation.
  var content = [
    'Hi,',
    '',
    'We have received your form!',
    '',
    'Regards,',
    'My name'
    ].join('\n');

  var subject = 'Confirmation form submission for ' + name;
  var from = 'My NAME';
  
  if (!recipient) {
    subject = 'Submission without email ' + name;
    MailApp.sendEmail(owner, subject, '', {name: from});
    return
  }

  try {
    MailApp.sendEmail(recipient, subject, content, {name: from});
    // We send another copy so that it will reach our inbox, not only Sent emails.
    MailApp.sendEmail(owner, subject, content, {name: from});
  } catch(error) {
    var subject = 'Submission with errors for ' + name;
    MailApp.sendEmail(owner, subject, error.message, {name: from});
  }

}