Thank you Philip,
You mean the whole paragraph is ok , and I I have to rewrite like this ?:
"" Dear colleages,
This year the comany is planning to organize a trip to PQ Island , about 200km away from the city center .Those who would like to join this trip should register with Miss Mary by Feb.15th ,2008 .
The trip is scheduled to leave for PQ Island , on Feb .22nd, 2008 and come back to the city on March 5th , 2008 .
Please note
Thanks "
By the way , can I say " This year I am not going to go on the company trip to PQ Island because I have got a lot on then." ?
Best wishes