From: [Your Email Address]
Sent: [Date and Time]
Subject: Accepting the Invitation
I hope things are going well with you. I got your email a little while ago. I felt really happy when I found out about your sister's wedding. I'm already getting my stuff together to come over for the ceremony. I'll be at your place soon. Make sure you're taking care of yourself. Send my regards to your folks.
Catch you soon,