You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Myself Mary Adams, can you help me to book a flight from TX - AUS to FL - MCO?

ASSISTANT: May I know your desired travel dates please?

USER: Ok, my travel dates are 02/02 and 02/04 respectively.

ASSISTANT: Please wait a while.

USER: Ok, please take your time.

ASSISTANT: Sure. Sorry to say, there is no flight on your desired travel dates.

USER: That's ok, thank you for assisting me. I will book next week.

ASSISTANT: Thank you for opting us.