Dear Mr Wang,

Pleae allow me to introduce myself. I'm the president of ABC Association. All members of our association have been admiring you for a long time. We sincerely hope that you could take time to give us a speech on Economic Analysis. We're very interested in this topic, and believe that you could give us some special points of view.

If any time is available for you, please reply this letter of contact me on sell phone 136XXXXXXXX. Looking forward to your kindly reply.

Best wishes,

Yours sincerely,

Lilly