You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you at this moment?

USER: Can you please help me in booking my flight ticket from DFW to MCO?

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

USER: My travelling dates are Feb 17 and Feb 19.

ASSISTANT: May I know your name for further process?

USER: Myself Rachel Clark.

ASSISTANT: Do you need any specific depart and arrival time for this trip?

USER: No.

ASSISTANT: Do you have any another specifications?

USER: I need connecting flight.

ASSISTANT: Ok, please hold on a moment.

USER: Sure.

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

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us.