Qui peut m aider svp. Je dois faire un dialogue en anglais : entretien d embauche teen jobs

dear sir or madam,                                                                                            I am writing to your job announcemen for an attendant in your service station. I am 15 years old because I love cars and I would really love to learn more about mechanics. I like being in contact with customers so I think I would be great for the job. thank you for your time  and attention. sincerely.                                                                                                 Plaideau Monique