You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you for today?

USER: I am Melissa Wilson, planning to visit New York. Can you please book me a ticket from LAS to EWR?

ASSISTANT: I am here to help you with that. Can you please let me know your planned dates of your journey?

USER: My preferable journey dates are from 08/09 to 08/11.

ASSISTANT: Please wait for sometime.

USER: Sure, I will wait for your response.

ASSISTANT: Thanks for waiting Wilson, there are no flights which can travel to your region on your planned dates of your journey.

USER: Ok, not an issue. I will find any alternate for this trip. Thank you for providing information.

ASSISTANT: You are welcome, thank you for reaching out here. Hope you have a nice day ahead.