You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Paul Green, want to travel from MCO to ORD for my trip. Please help me.

ASSISTANT: Sure, I am glad to help you. Could you please provide me your trip dates?

USER: My trip dates are from 01/03 to 01/05.

ASSISTANT: Ok, please be on hold for a moment.

USER: Sure, take your time.

ASSISTANT: Sorry Paul, there is no flight available on your preferred travel dates.

USER: It's ok, thank you.

ASSISTANT: You are welcome and thank you for choosing us.