You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Anthony Harris here. I need to attend a business meeting at Charlotte, can you please help me in booking a flight ticket from HOU to CLT?

ASSISTANT: Sure, let me know your journey dates?

USER: Sure, my travel dates are from Oct 21 to Oct 23.

ASSISTANT: Do you need any halt in between your journey?

USER: Yes, I am looking for a connecting flight.

ASSISTANT: Do you need any specifications?

USER: Please make sure that, my return time should be in the evening.

ASSISTANT: Please hold on a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that, there are no flights found on your routes.

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

ASSISTANT: Thanks for reaching us, have a nice day.