You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: Will you help me in booking the flight ticket from CLT to LAS?

ASSISTANT: Ok, I am here to help you with that. Can I know your planned trip dates?

USER: My travelling dates are July 24 and July 26.

ASSISTANT: May I know your good name?

USER: Myself Nancy Perez.

ASSISTANT: Is there any other requirements?

USER: I need a flight with single connection.

ASSISTANT: Ok, wait for a minute.

USER: Ok, I will wait.

ASSISTANT: Sorry to say that, there are no flights available based on your journey dates.

USER: Ok, not an issue.

ASSISTANT: Thank you for approaching us.

USER: Thank you for  your information.