Today was my coworkers last day of work. We both got along so well. Im upset she is leaving us. 
My coworkers last day of work was today. Im so upset she is leaving. 
user
That's so sad. Do you have any other friends there?
assistant
Yeah i do, but she was the one I was closest to. Yes I was very sad.
user
I am so sorry for you. Perhaps you can hang with her after your workdays?
assistant
Yeah maybe we can do that. Its not the same though. 
user