怎样写这样一封英文回信 内容是这样的：这真是一个好消息 我们很欢迎你们来北京详谈 邀请函我会很快准备好给您快递过去 请告

Dear##:
How do you do.It's really a good news.Welcome to talk with us in Beingjing.I will get the invitation ready and send it to you as soon as possible.Please tell me when you will come to Beijing.It's a pity that you and your father couldn't come to Beijing this time.I believe,we will meet each other in a short time.
Sincerly
Your's ##

Hi xxx先生,
That's a good news ,wWe welcome you to Beijing to go into details,The invite letter will be sent to you soon ,can you tell your schedule for your coming to Beijing.What a pity tha your parents and you aren't able to come to Beijing this time .But i believe we will meet soon.
Best wish
xxx先生

dear**
how are you? it is really good news, welcome to Beijing for further discuss!please kindly advise me when you will come to Beijing and i will send the invitation to you by express mail, anym...