You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Rachel Hernandez. I want to travel from DCA to DCA. Can you book a flight ticket for me?

ASSISTANT: May I know your trip dates?

USER: I want to fly on 12/01 and 12/03.

ASSISTANT: There is a flight with flight number 1016, can I proceed?

USER: Proceed to booking.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.