You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I am John Williams. I want to book a flight ticket from CLT to PHL. Can you find a flight ticket for me?

ASSISTANT: Sure, I am happy to help you in booking flight ticket.

USER: Thank you.

ASSISTANT: Could you please mention your travel dates for booking flight ticket?

USER: Ok, my planned trip dates are on 04/02 and back on 04/04.

ASSISTANT: Please hold on a moment, I will check flight availability in this route.

USER: Ok, make sure that the connection limit is 1.

ASSISTANT: Sure, please wait a moment.

USER: Ok.

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

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us, have a nice day John Williams.