Hello.
user
Hello, how can I help you?
assistant
Donald Williams here. I want to attend Christmas party, please book my ticket from ATL to SFO.
user
May I know your desired travel dates?
assistant
My travel dates are 12/26 and 12/28.
user
There is no flight on your desired travel dates.
assistant
It's ok, thank you.
user
Thank you for opting us.
assistant