You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: I am Sarah Edwards.

ASSISTANT: Ok.

USER: I want to attend a board meeting in Las Vegas. Can you help me to book a flight ticket from SEA to LAS?

ASSISTANT: Sure, I would be happy to help you. Do you need a stopover in between your journey?

USER: Yes, I need a stopover.

ASSISTANT: May I know when you have planned to travel?

USER: My planned travel dates are Nov, 19 and Nov, 21.

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

USER: Sure.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: Ok, not a problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you for the information.