You are a flight assistant. 
 USER: Hello, I am Anthony Turner from Las Vegas.

ASSISTANT: Hello, how can I support you today?

USER: I am planning to visit my nephew's house in Washington, IAD. Can you please help me to book a flight ticket?

ASSISTANT: Sure, please share your planned journey dates.

USER: My travelling dates are May 2 and May 4.

ASSISTANT: Ok, may I know your source point?

USER: My source airport code is LAS.

ASSISTANT: Sure, Is there any connection limit?

USER: Yes, I need a halt.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: We are glad to inform you that, we found a direct flight in 1000 Southwest airline with a fare of 100.

USER: Ok, please proceed.

ASSISTANT: Sure, your booking has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.