Hi.
user
Hello, How can I assist you?
assistant
Please help me to book a flight ticket from OAK to IAD.
user
Sure, May I know the travelling dates?
assistant
My journey dates are from Oct, 23 to Oct, 25.
user
Do you have any connection limit?
assistant
I need  a single connecting flight.
user
Is there any other requirements?
assistant
No.
user
May I know your name?
assistant
Nancy Moore.
user
Sorry, No flights found with your chosen dates.
assistant
Thank you for your information.
user
Thank you for opting us.
assistant