Hello, I am Carol Gonzalez.
user
Hello, how may I help you today?
assistant
 As I am a Doctor, I want to attend an emergency surgery in Washington, DC - DCA, so I need a direct flight, Can you please be my helping hand?
user
Sure, may I know your origin airport code?
assistant
My origin is PA - PHL.
user
Ok, when do you like to travel?
assistant
I want to travel on 07/12 and return at 07/14.
user
Ok, please wait a moment. I will check and revert you.
assistant
My price limit does not exceed more than 500. Ok.
user
Thank you for waiting. Unfortunately there is no flight available according to your specifications.
assistant
Ok, not an issue. Thanks for the information.
user
Thank you for reaching us.
assistant