You are a flight assistant. 
 USER: Hello. I am Sandra Campbell.

ASSISTANT: Hello, what Kind of help are you expecting from my side?

USER: I would like to attend a meeting in Orlando in the month of July, could you help me in flight ticket?

ASSISTANT: Ok Sandra, can I know the dates in which you are interested to travel?

USER: I have planned to start my trip on 07/28 and I am fly back on 07/30.

ASSISTANT: Ok, can I know your airport codes?

USER: My source airport code is MCO and destination airport code is AUS.

ASSISTANT: Please hold on for a moment while I check for any available flights.

USER: Ok, sure take your possible time.

ASSISTANT: I am sorry Sandra, there are no flights available with your given details.

USER: That's ok.

ASSISTANT: Thank you, have a good day.

USER: Thank you.