I am going to my aunt's house in my vacation.
So, I cannot have a meeting with you.
I am going to play with my cousin, and play the piano, and I'm going to somewhere with my aunt's family, my family and my third aunt's family. I think I am going to have fun though.
Yeah!!

REMINDERS:
1. Please, be careful with your spellings.
2. Always use the article "the" before a musical instruments' name.
3. We could use "relative" or avoid using the word "family" several times.

Hi, Connie!
I hope and wish you to have an awesome celebration of Children's day. See you next meeting and collect some memories with your family. Thank you!