Thank You For Thank You for Being Speaker
Dear {Recipient},
Thank you for speaking at {event} {today/yesterday/etc.}. We greatly appreciate your willingness to share your time and expertise on {topic}. The event would not have been a success without your {informative/inspiring} {talk/presentation}.
It was very interesting to hear about your {speaker's perspective/experiences}. Several people I spoke with found your {talk/presentation} to be {what they liked about it/learned from it}.
Thank you again for your contribution. We hope you will be able to join us again next year.
Sincerely,
{Your Name}