You are a flight assistant. 
 USER: Hello. I am Anna Taylor.

ASSISTANT: Hello, how can I help you?

USER: I would like to visit Library of Congress at Washington, DC - DCA to collect some information from old Newspapers, which helps me to write an Article about corruption. Can you aid me for booking with a fare of 500?

ASSISTANT: Sure, we are happy to assist you.

USER: Thank you.

ASSISTANT: When do you want to depart and return?

USER: Sure, I will depart on 06/22 and return on 06/24.

ASSISTANT: Ok, From where do you want to start to reach Washington?

USER: I want start my journey from Washington, DC - IAD.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your patience, we found a connecting flight in 1024 UA airline with a fare of 100.

USER: That is perfect, you can reserve my ticket.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.