Here is a sample prayer before the start of an event that you can use as a guide:
Heavenly Father,
We come before you today as we prepare for this event. We ask for your guidance and presence as we gather together.
Please bless all those who have worked to make this event possible. Please be with our speakers and give them your wisdom and discernment.
We pray for those who will be attending, that you would bring them your peace and comfort. Please be with us and help us to be a blessing to one another.
We pray that this event would be a time of growth and fellowship, and that it would honor you in all that we do.
In your holy name we pray, Amen.