Hello, I am Timothy Williams.
user
Hello, how can I best serve you today?
assistant
I need to fly Washington for my college seminar, could you please help me in booking my flight ticket from OAK to DCA?
user
Sure. On what dates you have planned your journey?
assistant
My journey is from 12/23 to 12/25.
user
May I know your budget limit?
assistant
I can spend upto 5000.
user
Thanks for your details, unfortunately there is no flight  found on your desired routes.
assistant
Ok, no issues. Thank you for your help.
user
Thank you for reaching us.
assistant