dear professor smith
I am writing this letter to apologize that
l had to cancel my travel plan for an emergen meeting,so I? could not visit you this time.i am very sorry for that.
thank you the same for being so considerate and attentive,which has brightened my day. if you do not mind,would you please do? me the honor of coming by on Nov 7. i am wondering whether the time is convenient for you?i have decide to throw a party and invite our friends to be here.
once again,please accept my heartfelt apology.i look forward to your presence.
