You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. In which way I can aid you today?

USER: Virginia Evans here. I want to attend a Marriage in Detroit. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I am happy to help you in booking flight ticket. Could you please mention your preferable travel dates for booking flight ticket?

USER: My travelling dates are from 11/09 to 11/11.

ASSISTANT: May I know your airport code names for further process?

USER: My airport codes are from LAX to DTW.

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

USER: Ok, I will wait.

ASSISTANT: There are no flights available in this route as per your requested dates.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for contacting us, have a good day.