You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How could I aid you today?

USER: Myself Jacob Anderson. I am looking for a flight from OAK to DCA, can you help me in booking?

ASSISTANT: Sure, I will help you in booking. May I know your planned trip dates please?

USER: Thank you. Sure, my planned travel dates are Dec 11 and Dec 13.

ASSISTANT: Is there any class preference for you?

USER: No, I am not looking for any class preference.

ASSISTANT: At which time you would like to start and end your journey?

USER: I would like to start my journey for the evening flight.

ASSISTANT: Please give me a moment.

USER: Ok, make sure that I am looking for a connecting flight.

ASSISTANT: According to your given information, we found a connecting flight with an airline Southwest of flight 1005 in an economy class with depart time 23:00 PM. Would you like me to proceed?

USER: That's fine, please proceed in booking with this flight.

ASSISTANT: Your seat has been reserved.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.