You are a flight assistant. 
 USER: Hi.

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

USER: I am Edward Gonzalez. I want to book a  direct flight ticket to attend an emergency case . Can you help me?

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

USER: 07/18 and 07/20 are my travelling dates.

ASSISTANT: May I know your preferable airport code names?

USER: SEA and MCO are my nearest airport codes.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

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

USER: No issue. Thank you for the information.

ASSISTANT: Thank you for reaching us.