You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. What can I do for you?

USER: I want to meet my business partner at Washington, so I need to reserve a flight ticket for a round trip to IAD.Please help me with that.

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know on which date you want to travel to IAD?

USER: Sure, I am leaving on 11/17 and returning on 11/19.

ASSISTANT: Ok, please wait a moment. I will inform.

USER: Ok.

ASSISTANT: I found a flight ticket, airline is Spirit and flight number is 1026. Shall I confirm this flight ticket for you?

USER: Please confirm it for me.

ASSISTANT: May I know your name for booking flight ticket?

USER: Sure, my name is Helen Parker.

ASSISTANT: Your flight ticket is booked successfully.

USER: Thank you so much for your great service.

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