Hello, I am Gary Anderson.
user
Hello, how may I support you?
assistant
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?
user
Sure, when are you wiling to travel?
assistant
My trip dates are 05/05 - 05/07.
user
We have found a connected flight with UA  airlines, flight number 1001 and the fare of 100.
assistant
Please proceed.
user
Your flight ticket is booked.
assistant
Thanks for assisting me.
user
Thanks for your approach.
assistant