You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Laura Thomas here.

ASSISTANT: How can I assist you at this moment?

USER: Can you help me to book a flight ticket from Las Vegas to New York?

ASSISTANT: Sure Laura Thomas, I will help you with that. Can I have your travel dates please?

USER: Ok, my planned journey dates are 12/09 and 12/11 respectively.

ASSISTANT: Ok Laura Thomas, let me know airport codes of your journey locations.

USER: Ok, my airport codes for my source and destination are LAS and JFK.

ASSISTANT: Ok, please wait a moment to check flight availability.

USER: Ok, take your own time.

ASSISTANT: Sorry Laura Thomas, no flight is available to you on your dates due to some weather conditions.

USER: Ok, not a problem. Thank you for the information.

ASSISTANT: Thank you for choosing us, have a good day.