Dear Ms. Wankanit
 
Thank you for your email and support for the arrangement.
Could you let me know in which date, either 25 or 26
you would like to arrange the meeting?
 
And I would also prefer to communicate in email in addition to the letter
since we will not be in the office from 21 Dec- 4 Jan.
 
Thank you for your understanding.
Kenichi Umeyama