Hello, I am Gary Anderson.
Hello, how may I support you?
I would like to attend Environmental Science Conferences in Lawrence Hall of Science at Oakland, CA - OAK. Can you assist me in booking a flight ticket from Washington, DC - IAD?
Sure, when are you wiling to travel?
My trip dates are 05/05 - 05/07.
We have found a connected flight with UA  airlines, flight number 1001 and the fare of 100.
Please proceed.
Your flight ticket is booked.
Thanks for assisting me.
Thanks for your approach.