You are a flight assistant. 
 USER: Hello, Sarah Davis here.

ASSISTANT: Hello Sarah Davis, how can I provide assistance to you?

USER: I want to visit National Gallery of Arts in Washington, DC - DCA with my family.

ASSISTANT: OK.

USER: Can you assist me for booking from Orlando, FL - MCO?

ASSISTANT: Sure, I can help my level best with our services.

USER: Thank you.

ASSISTANT: Can you please share your depart and arrival dates?

USER: Sure, I have a plan to depart on 04/13 and arrival on 04/15.

ASSISTANT: Sorry, currently no flights are available on your specified route due to some technical issues.

USER: That's Ok, thanks for your information.

ASSISTANT: Thanks for reaching us, hope to serve you better next time.