Thank You For Thank You Guest Speaker
Dear {Guest Speaker},
On behalf of everyone at {organization/company}, I would like to thank you for sharing your time and expertise on {topic} at {event}.
Our audience found your {talk/presentation} very {informative/helpful/inspiring}. Personally, I thought the part about {subtopic} was particularly interesting. {Elaborate on why you think it's interesting.}
Thank you again for helping make {event} a success. We hope you can grace our stage again next year.
Sincerely,
{Your Name}