You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I have planned to book a plane ticket from IAH to IAD, can you assist me?

ASSISTANT: Sure, can you share me your trip dates?

USER: My preferred dates are Oct 17th and Oct 19th.

ASSISTANT: Are you looking for any other help from my side please?

USER: I need direct flight.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: There is a direct flight of fare 200 with the AA airline, are you fine with this booking?

USER: Proceed.

ASSISTANT: Ok, I have confirmed your ticket with the flight number 1012. May I know your name please?

USER: Thank you for booking. Helen Thompson.

ASSISTANT: Thank you for reaching us.