Dear Mr. Tim
Regarding to the new contact which you sent to me earlier this week, there are many points which I do not understand, and I would like to discuss them with you.
It would be a great pleasure to meet and to discuss this matter with you. I will be available on 20 August at 13.00 p.m. Therefore, an alternative appointment will be arranged.
I will look forward to meeting you again
Yours sincerely
Kannika Chanakankorn