Hi.
user
Hello. How can I assist you today?
assistant
I am Stephanie Carter. Can  you help me in booking from IAD to DCA?
user
Ok, can you please let me know your trip dates?
assistant
My travelling dates are 09/09 to 09/11.
user
Ok, please wait for a while.
assistant
Sure.
user
Thank you for waiting, flight-1018 is available in AA airlines with price 100 only. Shall I book the ticket for you?
assistant
You can book it.
user
I have successfully booked your ticket.
assistant
Thank you for helping.
user
Thank you very much for choosing us and happy journey.
assistant