You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. In which way I can aid you at this moment?

USER: Can you please help me in booking my flight ticket from DTW to DEN?

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

USER: Ok, thank you.

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

USER: Ok, my preferable dates are 10/16 and 10/18.

ASSISTANT: May I know your name for further process?

USER: Myself Susan Turner.

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

USER: Ok, sure.

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

USER: Ok, fine thank you for your information.

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