Hi.
user
Hello, how may I aid you today?
assistant
Aid me in booking a flight ticket with the name of Robert Lee from Washington, IAD.
user
Sure, may I know your origin airport code?
assistant
Destination is at PHL.
user
May I know your travelling dates?
assistant
10/11 - 10/13 are the journey dates.
user
Thank you for your details, there are no flights  found with your specified dates.
assistant
Not a problem.
user
Thank you for reaching us.
assistant
Thank you for aiding me.
user
May I know your good name. Ok, thank you.
assistant
Ok. Thank you.
user