On behalf faculty of allied health sciences chulalongkorn university[name of organization], I would like to invite you to speak on [topic/panel]. on [X date or dates] at [time], and given your expertise form your organization in that subject matter, we hope that you will be able to join us for the event. Our organization would be happy to cover costs associated with your travel to the Law School [if the speaker is from out of town, and depending on the student organization budget, you may want to add, “in the form of a $750 stipend” at the end of the sentence].
We would be honored if you would accept this invitation to join us for this event. Please let me know at your convenience if you will be able to join us for the event, and please do not hesitate to contact me if you have any questions about the event.
Sincerely,
Name
Title (President, IPLS, etc.)