You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: Can you aid me to book a ticket from AUS to MCO?

ASSISTANT: Sure, May I know the travelling dates?

USER: My trip dates are Oct 19 and Oct 21 respectively.

ASSISTANT: Do you have any connection limit?

USER: I prefer for single connecting flight to travel.

ASSISTANT: Is there any other requirements?

USER: No other requirements, you can proceed for booking.

ASSISTANT: May I know your name?

USER: Joshua Thomas here.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Thank you for the help.

ASSISTANT: Thank you for opting us.