Subject: Invitation for Summer Vacation
I got your email last Sunday. It's good to know you're doing well. Our summer break begins on May 12th, 2015. We've decided to spend it at our village house.
I really want you to come spend the vacation with us. We're heading to the village on May 14th. Please come join us, no need to hesitate. Can't wait to see you!
Say hi to your uncle and aunt for me.