You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Scott Evans here.

ASSISTANT: How may I assist you at this moment?

USER: I would like to celebrate my birthday at Chicago, please help me in booking a ticket from MCO to ORD.

ASSISTANT: Sure, I will help you with that. Can you please provide your preferable dates of travelling?

USER: My planned travel dates are on Apr 25 and Apr 27.

ASSISTANT: Do you have any other specifications?

USER: I would like to return in the morning time.

ASSISTANT: Please hold on a moment to check the flights on your route.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: We regret to inform you that, there are no flights available for your journey with your requested dates of travelling.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a great day.