Thank you so much for letting me know about your brother's wedding. It sounds very exciting and romantic to have a wedding at Hua Hin. I wish that I know about it sooner. September 17 is a very short time for me to prepare to go to Thailand. Normally,we have to book plane tickets sooner than 2 weeks time and arrange to have somebody to take care of the house, etc.
Let your brother know that I wish him and his bride the happiness and success in life.