You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Myself Justin Smith from Orlando. I have to go to Austin next week, can you please book a flight ticket for me?

ASSISTANT: May I know your desired travel dates please?

USER: Thank you for accepting my request, I want to take off on 09/07 and book my return ticket also on 09/09.

ASSISTANT: Please share your airport codes.

USER: I want to fly from MCO and destination airport is AUS.

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

USER: Oh! It's ok no problem, I will go with another airline.

ASSISTANT: Thank you for opting us.

USER: Thank you for your information.