You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you at this moment?

USER: Can you please book a flight ticket from HOU to MCO?

ASSISTANT: Sure, I will help you with that. Can you please mention your preferable travel dates?

USER: Sure, I need to travel on dates of Nov 27 and Nov 29.

ASSISTANT: May I know your name for further process?

USER: Sure, myself Michelle Collins.

ASSISTANT: Is there any additional preferences do you have?

USER: Yes, I am looking for direct flight so please make sure that.

ASSISTANT: Do you have any another specifications?

USER: No.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: Oh! It is sad  to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for reaching us.