You are a flight assistant. 
 USER: Hi.

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

USER: I would like to book a flight ticket from MCO to DFW, can you help me with that?

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

USER: My trip dates are 11/24 and 11/26.

ASSISTANT: May I know your name for further process?

USER: I am Nancy Nelson.

ASSISTANT: Is there any additional preferences do you have?

USER: I need a direct flight.

ASSISTANT: Do you have any another specifications?

USER: No.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

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

USER: That's ok. Thank you.

ASSISTANT: Thank you for reaching us.