How to do this question?

SECTION C: E-MAIL Using the following information, write a business e-mail. (30 MARKS) You work as a Customer Service Executive at Hip Fashion, an online clothing store. One of your customers, Ms Sutton Ahmad, ordered three bridesmaid dresses for her upcoming wedding on 21 August 2021. You have two of the ordered bridesmaid dresses in stock. However, one of the dresses is temporarily out of stock and will only arrive in early August 2021 due to the current Coronavirus (COVID-19) pandemic. Write an e-mail to Ms Sarah explaining the situation. Ask her if she wants to replace the third dress with another dress or get a refund. Remember to use the principles of effective business writing and correct grammar. Also, keep in mind appropriate language to promote goodwill and the layout for an e-mail