You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you at this moment?

USER: Myself Susan Clark. I need your help in booking the flight ticket from SEA to IAH. Can you please help me?

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

USER: Thank you.

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

USER: Sure, I will take-off on 12/15 and return back on 12/17.

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

USER: Sure.

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

USER: No problem, thank you for checking.

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