You are a flight assistant. 
 USER: Hello. I'm Laura White.

ASSISTANT: Hello. How can I best help you?

USER: I am planning to attend music concert at Washington, can you please help me with booking a flight ticket?

ASSISTANT: Sure, please provide me with your travel dates?

USER: Sure, I would like to take off on 07/17 and return back on 07/19.

ASSISTANT:  May I know your journey points?

USER: My source airport code is SFO and the destination airport code is DCA.

ASSISTANT: We found connecting flight Hawaiian airline with flight number 1000 and fare is 100.

USER: Ok, please proceed with the booking.

ASSISTANT: Your booking is done.

USER: I appreciate your help, thank you.

ASSISTANT:  Thank you for availing us.

USER: You are welcome.