Hi.
user
Hello, how can I help you today?
assistant
Please book a flight ticket from PHL to DCA.
user
Sure, please share your planned travel dates?
assistant
My trip is in June from 21st to 23rd.
user
Do you have any connection limit?
assistant
I prefer a direct  flight.
user
Would you like to avail any benefits for the comfort of your journey?
assistant
No, thanks for asking.
user
Can I have your name please?
assistant
Sandra White.
user
Sorry, no flights found with your given details.
assistant
That's ok, thank you for your information.
user
Thank you for opting us.
assistant