You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Joseph Wright.

ASSISTANT: How may I assist you?

USER: I would like to take my sister to Minneapolis, can you please help me to book a flight ticket from DCA to MSP?

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

USER: Sure, my journey dates are 09/26 and 09/28.

ASSISTANT: Please hold on a moment.

USER: Ok, take your own time.

ASSISTANT: I found an economy class ticket in UA airlines with fare 200. Can I book your ticket?

USER: Ok, please proceed for booking.

ASSISTANT: Ok, your booking is confirmed with flight number 1008.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: You are welcome.