Situation: You remind your friends that you have an appointment to go to the bookstore together. Your friends are always coming late, you warn him/her to come on time.

Dear Friends, we have a bookstore appointment this weekend and i hope you all will come on time, the last time we went to the appointment Sarah and Jim were late so i hope that won't happen again, thank you for reading this and i hope our appointment goes smoothly

Situation: Write to your friend that you are thankful for the hand-made knitted scarf. Tell her that the scarf is what you want for a long time.

Dear Friend, thank you for the scarf that you knitted for me this scraf is very special to me and it keeps me warm on cold nights, i appreciate that you made this for me and i will keep this for the rest of my life.