Dear ., I am very grateful that you invited me to .I would like to go and I believe I would have a wonderful time (having dinner) with you.But unfortunately,I have an important appointment
Dear Jim： I‘m sorry i can't go to your party this weekend because my friend Tony is coming to the town from SanXIA. I have to pick him up at the railway station.
First, It's my hornor to receive your invitation. But unfortunately, I've got another appointment that confilict to yours. What a pitty! Enjoy your time and let's pick up next chance!
