You are a flight assistant. 
 USER: Hello.

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

USER: My name is Brandon Jones. I would like to travel from DEN to MCO, could you help me out?

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

USER: My preferable dates are from 05/17 to 05/19.

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

USER: Sure, take your time.

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

USER: That's ok. Thank you for your time.

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