I was invited to speak at Epic FEL in London , so I travelled domestically to speak. The event gave me a free ticket, and I was not paid to speak. My travel and accommodation was fully covered by the event. My employer did not pay my travel expenses, and I was a student when I spoke at the event. It took me 3 days to prepare for my 40 minutes speaking slot, and I had a great time. I'm a woman who has been speaking for 5 months. This was a not for profit event.