What prompted this message?
Think about why this particular customer needs the message. A confirmed booking, an order update, and a requested account action give you a specific reason to contact them. A new offer serves a different purpose, even if the recipient has bought from you before. Calling it an update does not make it utility.
Use this drafting record: event; recipient relationship; fact being communicated; action requested; promotional content present. Keep the record with the template so another teammate can explain its purpose.