Hello.
user
Hello. How can I help you today?
assistant
I am David Carter, can you please help me in booking a flight ticket from  OAK to IAD?
user
Sure, I am glad to help you in booking. Can you please share your trip dates?
assistant
My trip dates are from 11/02 till 11/04.
user
Here, I found a flight for you with 1 connection and fare is 100. Shall I proceed?
assistant
Please proceed.
user
Your booking is done with flight 1005 and airline is Southwest.
assistant
Thank you for booking.
user
Welcome, have a nice day.
assistant