Dear [Name],

I hope this letter finds you well. I am writing to invite you to [event/occasion]. The event will be held on [date] at [time] at [location].

We would be honored to have you attend and be a part of this special occasion. The event will be [describe the event, e.g. a wedding, a birthday party, a charity event, etc.] and we would love for you to join us in celebrating.

Please let me know if you are able to attend by [RSVP deadline]. We look forward to seeing you there!

Best regards,

[Your name]