You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you today?

USER: Can you please help me in booking a flight ticket from OAK to DCA?

ASSISTANT: Do you have any limit on number of connections?

USER: Yes, I am looking for a connecting flight.

ASSISTANT: May I know your other travelling dates for your journey?

USER: Sure, my travel dates are from May 05 to May 07.

ASSISTANT: Please, share me your good name to proceed further.

USER: Myself Mark Carter.

ASSISTANT: OK, please wait for a moment.

USER: Sure.

ASSISTANT: American airlines is providing you the connecting flight in economy class, shall I proceed by booking?

USER: Ok, please proceed.

ASSISTANT: Your flight has been reserved with flight 1022.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us, have a good day.