Hi. I am Helen Walker.
Hello, How can I amend you today?
 I want to visit Chabot Space and Science Center at Oakland. Can you be my helping hand in searching a flight with layover?
Sure.
Thank you.
How much you can spend for this ticket?
I can pay up to 500.
When to want to start your journey?
I will start my journey on 12/12.
May I know your origin?
My nearest origin airport code is Las Vegas, NV - LAS.
When are you coming back?
I will return on 12/14.
Let me know your destination.
My destination is Oakland, CA - OAK.
Please wait.
Sure.
Thanks for waiting. There is a flight 1000 in Southwest airline and price 300 with a connection.
Please, reserve my seat with airline Southwest.
Reservation is done.
Thank you for your help.
Thank you.