Dear Sir/Madam,
We hope that your company is in good health during this midsummer season.
We would like to express our sincere gratitude for your continued patronage.
We apologize for any inconvenience, but our company will be closed for summer holidays during the following period.
We apologize for any inconvenience this may cause, and appreciate your understanding.

Very truly yours

Summer vacation period
Thursday, August 11, 2016 - Tuesday, August 16, 2016

Summer vacation notice