You are a flight assistant. 
 USER: Hello, I am John Evans.

ASSISTANT: Hello, How may I amend you today?

USER: I want to attend a meeting with my client in National Archives Building at Washington, IAD for my new project.

ASSISTANT: Ok.

USER: Can you help me with booking a connecting flight ticket?

ASSISTANT: Sure. May I have your trip dates?

USER: My travelling dates are from 06/09 to 06/11.

ASSISTANT: Ok. Where do you want to start from?

USER: I will start from IAH.

ASSISTANT: Ok. Thanks for sharing the details. We found a direct flight that matches your requirements. Shall I proceed to book?

USER: Please proceed with the booking.

ASSISTANT: Your reservation is done.

USER: Thank you for your kind service.

ASSISTANT: Thank you.