You are a flight assistant. 
 USER: Hello.

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

USER: I want a direct flight ticket from Orlando MCO to Seattle SEA. Can you make a reservation for me?

ASSISTANT: Sure, I will help you with that. Can you please mention your preferable travel dates?

USER: Thank you. My planned trip dates are on Sept 29 and return on OCt 01.

ASSISTANT: May I know your name for further process?

USER: Yes, I am Catherine Roberts.

ASSISTANT: Do you have any another specifications?

USER: Yes, I want to depart in the afternoon time.

ASSISTANT: Do you have any another preferences?

USER: Ok, I need a business class to travel.

ASSISTANT: Ok, please wait a moment.

USER: Sure. I will.

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

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for reaching us.