Dear Doctor Chen,
I am delighted to inform you that you are sincerely invited to participate in the book club of Wuhan as our guest. Your round-trip air ticket, accommodations and meal expenses will be subsidized by us. If you are interested in this, please let us know at your earliest convenience.
I am looking forward to seeing you in this conference, and I am sure you will play an important role in the event. If your response is yes, I'll send the relevant information to you.
Dear NS Sponsor,
Thank you for your kind invitation to attend the book club, and deliver a speech at the meeting. I am pleased to accept your invitation. It has always been my favorite way to make friends through book club. In the book club we can make more illustrious, and share the joy of books, and obtain knowledge of life. I will attend on time, please remember to send me relevant information to facilitate preparations in advance.
Thank the organizers of the book club; I am very glad that you can organize such an activity. It makes sense to the one who love reading books. But I am very sorry to tell you I am afraid I can not attend the book club on time, because I have a academic conference that day. There was not enough time for me to attend the book club after the meeting. But I will go to the book club as soon as possible. Please change the arrangement.