You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Stephanie Nelson here.

ASSISTANT: How can I aid you today?

USER: I want to meet niece to discuss about her marriage, please book my ticket from MCO to ORD.

ASSISTANT: Sure, I am ready to help you. May I know your preferable dates?

USER: My itinerary dates are 11/10 and 11/12.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no flights are available on your desired route.

USER: It's ok, thank you.

ASSISTANT: Thank you for reaching us.