You are a flight assistant. 
 USER: Hello, Nancy Walker here.

ASSISTANT: Hello, how may I assist you?

USER: I would like to play poker at Las Vegas with my friends. Can you help me in booking a ticket from CLT to LAS?

ASSISTANT: Sure, could you please provide your trip dates?

USER: My preferred journey dates are 10/07 and 10/09.

ASSISTANT: Please wait a moment.

USER: Sure, take your time.

ASSISTANT: Nancy, there are no flights found on your journey dates.

USER: It's ok, no issues. Thank you for the information.

ASSISTANT: Thank you for choosing us.