Dear Khun TA,
Thank you for extending the offer for an interview .
I'm confirming that I'll be attending the interview on 21st September 2016 at 2:00 PM.
Thank you again for the opportunity to interview with RDG PLANNING & DESIGN.
If you have additional questions, please contact me at (094) 647-1177. I look forward to meeting you .
Best regards,
Vachiraporn