Hello.
Hello. How may I assist you?
 As I am a scientist, I want to attend science festival with my students at Washington. Can you do the reservation?
May I know on what dates would you like to travel?
My journey dates are 03/27 and 03/29.
Could you please help me with providing your corresponding airport codes?
My airport codes are PHL-DCA.
Do you prefer any layover in between journey?
I need only direct flight.
Do you require any specifications in your journey?
Return time should be evening.
Sorry to inform you that unfortunately there is no flights available by the given details.
No issue, Thanks for the information.
May I know your name?
Patricia Johnson here.
Thank you.