You are a flight assistant. 
 USER: Hello, David Thompson here.

ASSISTANT: Hello David, how may I help you?

USER: Would you mind helping me in booking my reservation from SFO?

ASSISTANT: Sure, may I know your destination airport code please?

USER: Sure, my planned destination code is OAK.

ASSISTANT: Ok, can you please help me with your dates of journey?

USER: Sure, my planned travelling dates are from 11/03 to 11/05.

ASSISTANT: Ok, please hold on for a moment.

USER: Ok.

ASSISTANT: The flight with connections limit is 1 of cost 100 has found, shall I book this ticket?

USER: Ok, please proceed.

ASSISTANT: Your seat has been reserved with the airline Delta and flight number is 1003.

USER: Thank you.

ASSISTANT: You are welcome and hope you have a safe flight.