Dear Sir or Madam,
I am absolutely honoured to learn from your email that you have finalised my joining in your company as an executive. I consider it a great leap towards my future career and I will serve my position with my best effort. However, I am writing to seek your permission for a delay on the joining date.
I am afraid I cannot join on 15th June, the date you expect me to start. After I formally notified my current employer a month ago, they welcomed my decision. However, they have recently requested an extension to handover the projects I am currently working on and train a colleague. I am already committed to a project with my current employer and it would take another week to be finished. Thus, the new request from my manager forces me to work another two weeks with them.
Therefore, I would request you to delay my joining date and I am absolutely positive about starting with you from the 1st of July.
I hope you would allow me to finish my commitment to the current employer and let me join your company on 1st July.
Yours faithfully,
Daren Smith
Dear Sir or Madam,
I am  
absolutely
  honoured
 to learn from your email that you have  
finalised
 my joining in your  
company
 as an executive. I consider it a great leap towards my future career and I will serve my position with my best effort.  
However
, I am writing to seek your permission for a delay on the joining date.
I am afraid I cannot  
join
 on 15th June, the date you  
expect
 me to  
start
. After I  
formally
 notified my  
current
 employer a month ago, they welcomed my decision.  
However
, they have recently requested an extension to handover the projects I am  
currently
 working on and train a colleague. I am already committed to a project with my  
current
 employer and it would take another week to  
be finished
.  
Thus
, the new request from my manager forces me to work another two weeks with them. 
Therefore
, I would request you to delay my joining  
date and
 I am  
absolutely
  positive
 about starting with you from the 1st of July.
I hope you would  
allow
 me to finish my commitment to the  
current
 employer and  
let
 me  
join
 your  
company
 on 1st July.
Yours  
faithfully
,
Daren Smith
6Linking words, meeting the goal of 7 or more
0Repeated words, meeting the goal of 3 or fewer
3Mistakes