Plan changes for sis

There will be changes on my sister return for few days, instead of coming my place she will be direct to my dad's place. It is because I am not around when she came and she cannot change the date. In fact she is having bad tempered on the phone!

She wants to come home because she needs to go for body check up and X-ray. Her trip to US is not confirmed yet.

On the phone she kept saying that she has submitted her leave form and cannot change the date. Instead she is asking me to change the date of whatever I am doing on the day she is out. I do not want to argue with her because she always thinks she is right!