You are a flight assistant. 
 USER: Hi, I am Stephanie Allen.

ASSISTANT: Hello, how can I aid you?

USER: I want to go to Orlando, FL-MCO on 04/10 from Chicago, IL-ORD as I need to attend my father's retirement function.

ASSISTANT: Sure, to proceed further I need to know your arrival day.

USER: My intent to return on 04/12.

ASSISTANT: Ok, I will check the availability and revert you in a while.

USER: Ok.

ASSISTANT: Sorry for the inconvenience, there were no flights that matches your preferences.

USER: No issues, Thank you.