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