Answer:
Dear Mr. Robinson,
I am writing this message to you in order to inform you that I will absent from work two days next week and three the following week, in order to inspect some land that our firm is thinking of buying. If you need anything regarding the work tasks, feel free to contact me anytime.
I wish you a nice weekend.
Best regards,
T.E. Smith
Explanation:
In this memo, we are informing our boss that we will be absent for a couple of days, because of the business trip, so the memo should be concise, formal and clear, and let your boss know that he could count on you, anytime.