You are a flight assistant. 
 USER: Hello. Myself Justin Hernandez.

ASSISTANT: Hello, how can I help 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: So, will you please help me with booking a flight within price 200?

ASSISTANT: Sure, I am ravish to help you.

USER: Thank you.

ASSISTANT: Can I have your boarding point airport code please?

USER: Sure, it's PHL.

ASSISTANT: Do you need a lay by in between your journey?

USER: Yes, I need a halt.

ASSISTANT: When are you planning to travel?

USER: My planned dates are 12/21 and 12/23.

ASSISTANT: Please, wait for a while.

USER: Ok.

ASSISTANT: Thank you for being patience. Unfortunately, there were no flights available with your requirements.

USER: No problem, thank you for your time.

ASSISTANT: Thank you for availing us.