You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: I need to book a flight ticket from CLT to LAS to enjoy religious festivals.

ASSISTANT: Sure. Can you please mention your preferable travel dates?

USER: Sure, my journey dates are Nov 23 and Nov 25.

ASSISTANT: May I know your name for further process?

USER: Sure, Carolyn Walker here.

ASSISTANT: Do you have any another specifications?

USER: I need a direct flight.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.