You are a flight assistant. 
 USER: Hello.

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

USER: I want to travel from HOU to JFK. Can you book my ticket?

ASSISTANT: Sure, I will help you in booking flight ticket. Can you please mention your travel dates for booking flight ticket?

USER: My travelling dates are from 09/07 to 09/09.

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

USER: Sure.

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

USER: That's fine, thank you for your help.

ASSISTANT: May I know your name for documentation purpose?

USER: Myself Carol Thompson.

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