Hello.
Hello. How can I help you at this moment?
I want to  book a flight ticket from SFO to OAK. Could you help me in booking?
Sure, I am here to help you. Can you please provide your journey dates?
My travelling dates are from June 22-24.
Do you have any class preference?
I prefer for normal-cost airline.
May I know your connection limit preference?
I need 1 connecting flight.
Do you have any other specifications for this trip?
My depart time should be in the afternoon and I prefer for economy class.
May I know your good name please?
Raymond Baker here/.
Raymond Baker, we regret to inform you that there are no flight services are available on this route with your preferences.
That's ok, no problem. Thank you.
Thank you for opting us.