Dear John,
I'm going to Thailand by plane this week. Since it's the beginning of the summer vacation, I don't want to stay at home as usual. I'd spend two weeks, for one week in Phuket and the rest of time in Chiang Mai. My two uncles are in these two places. And I've heard that you're interested in that place, so would you like to go with me? I'm looking forward to your letter.
Yours,
Li Ming