You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: I want to book a flight ticket from MCO to AUS. Could you help me in booking?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: My travelling dates are from July 23 - 25.

ASSISTANT: Ok, could I have your name please?

USER: Charles Scott.

ASSISTANT: Ok, do you need direct or connecting flight?

USER: I prefer for connecting flight.

ASSISTANT: Ok, do you have any other specifications?

USER: No.

ASSISTANT: Sorry, there is no flight on your requested travelling dates.

USER: That's ok, no problem. Thank you.

ASSISTANT: You are welcome.