Hi.
user
Hello. How can I help you?
assistant
I am heading from Washington, DC - IAD to attend a international conference at Philadelphia, PA - PHL. Can you help me with it?
user
Sure. May I know your travelling dates?
assistant
They are planned to be on 04/28 and 04/30.
user
May I know your good name?
assistant
My name is Mark Hill.
user
Thanks for your details, There is no flights found on your data.
assistant
It's ok, thank you for the information.
user
Thank you.
assistant