Hi.
Hello, how can I help you?
I am Betty Walker want to visit IAD, can you book a ticket from OAK?
May I know your desired travel dates please?
Sure, my travelling dates will be 01/21 and 01/23.
Please wait a while.
Ok.
Sorry to say, there is no flight on your desired travel dates.
That's ok, thank you.
Thank you for opting us, have a nice day.