Hi.
user
Hello. How can I help you?
assistant
I am planning to meet my school friends in Washington, can you please book the flight ticket from PHL to IAD?
user
Can you please share with us your trip dates?
assistant
I want to take-off on 03/18 and return back from IAD on 03/20.
user
Please hold on a while.
assistant
Sure.
user
To proceed further may I know your name?
assistant
Sure, my name is Elizabeth Hall.
user
Sorry, no flights are available with your planning dates.
assistant
Not an issue, anyway thank you for the information.
user
Thank you for reaching us.
assistant