Hi.
user
Hello, what kind of help you  are looking for?
assistant
I want to book a flight ticket from PHL to DCA. Can you please help out?
user
Sure, can you please share your journey dates?
assistant
My travelling dates are Feb 18 and Feb 20.
user
Do you prefer connecting or direct flight in your journey?
assistant
I need direct flight.
user
Is there any class preference?
assistant
I prefer business ticket.
user
Do you have any other preferences?
assistant
No.
user
May I know your name please?
assistant
Myself Emily Lewis.
user
Ok, please wait for a while.
assistant
Ok, I will wait.
user
Sorry to inform you that, we did not find any flights matching your journey dates.
assistant
Ok, thanks for checking.
user
Thank you for opting us.
assistant