第1个回答 2014-04-11
Dear Jack,
I'm terribly sorry that I can't make it to go to Shanghai with you next weekend because of an unexpected urgency, and I have no alternative but to cancel our travel.
If it is convenient for you to adjust our trip to another day, please let me know your available schedule, and I won't let this happend again.
Looking forward for your reply, and again I'm sorry for that!
yours'
Li Jun