You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Can you please help me in booking a flight ticket from CLT to LAS?

ASSISTANT: Can you please forward your journey dates?

USER: Sure, my travel dates are from Oct 31 to Nov 02.

ASSISTANT: Is there any connection limit for you?

USER: Yes, I need a break in between my journey.

ASSISTANT: May I know your name?

USER: Myself Donald Walker.

ASSISTANT: Any other specifications required for your journey?

USER: I would like to depart in the afternoon.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry Donald Walker, based on your requirements we haven't found any flights in airline database.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thanks for contacting us.