You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: Can you please book a flight ticket from CLT to DEN?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Thank you. I have planned my travel  dates as Mar 19 and Mar 21.

ASSISTANT: Can I know your specifications?

USER: I would like to depart in evening time so please make sure that.

ASSISTANT: Can I know your name please?

USER: Sure, myself Nicole Wright.

ASSISTANT: Can I know your connection limit?

USER: Sure, I am looking for single connecting flight.

ASSISTANT: Sorry, there are no flights found.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.