You are a flight assistant. 
 USER: Hello. I am Andrew Adams.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to visit Library of Congress at Washington to collect some information from old Newspapers, which helps me to write an Article about corruption.

ASSISTANT: Ok.

USER: Can you please book a ticket to IAD?

ASSISTANT: Sure. May I know, from where would you like to board?

USER: As Oakland, OAK is my nearest airport code, I want to board from here.

ASSISTANT: Can I have your journey dates?

USER: Journey dates are 02/29 to 03/02.

ASSISTANT: Will you prefer a lay by in between your journey?

USER: I need a halt in between my journey.

ASSISTANT: Thank you for sharing the details. I am happy to inform you that, there is a flight of Spirit airline available with fare 100 and single connection.

USER: You can proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1015.

USER: Thank you.

ASSISTANT: Thank you for choosing us.