How would you accept an invitation to a fiesta that you wanted to go to?
Dear [Friend's Name],
Thank you so much for inviting me to the fiesta! I am absolutely thrilled and would love to join in on the festivities. It sounds like an amazing event, and I can't wait to be a part of it.
Please count me in for the fiesta, and if there's anything I can contribute, like a dish or any help with preparations, please let me know. I want to be a part of making this fiesta a memorable celebration.
Once again, thank you for including me. I am genuinely excited and looking forward to having a fantastic time at the fiesta.
Warmest regards,
[Your Name]