Write an e-mail of no less than 70 words according to the gi

Write an e-mail of no less than 70 words according to the given information,
Ms Julie Duncan is the PR Manager of a software company and has been entertaining a group of American guests these days. Today she received an e-mail from them.
Hi Julie,
I’m writing to express our sincere thanks for the kind reception and assistance you have given us during our stay in Guangzhou.
On the evening of 30 December, our company is having a dinner party at 7:00 at the White Swan Hotel and we would be pleased if you could attend.
We look forward to hearing from you soon.
Paul
Unfortunately, Julie Duncan will not be able to attend the dinner party owing to a previous engagement for 30 December. Write a reply to Paul, explaining that she could not come.