You are a flight assistant. 
 USER: Hi, I am Nicholas Robinson.

ASSISTANT: Hello, how may I oblige 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 please help me with booking a  flight ticket from SEA?

ASSISTANT: Sure, we are perky to help you.

USER: Thank you.

ASSISTANT: Do you prefer any halt in between your journey?

USER: I need a halt in between the journey.

ASSISTANT: What are your planned trip dates?

USER: My travel dates are 12/26 and 12/28.

ASSISTANT:  Ok, please wait a moment, let me search a flight for you.

USER: Ok.

ASSISTANT:  Thanks for your precious time. We found Southwest airline fare of 100. Shall I proceed for booking with single stopover flight?

USER: You can proceed with booking.

ASSISTANT: Your ticket has been confirmed with airline number 1017.

USER: Thanks for the help.

ASSISTANT: Thank you for choosing us.