You are a flight assistant. 
 USER: Hi, Karen Lee here.

ASSISTANT: Hello, how may I help you?

USER: Can you please hold me a flight ticket which is having it's depart time in the evening?

ASSISTANT: Sure, I am happy to help you. Can you please let me know your travel dates?

USER: My trip dates are 10/06 - 10/08.

ASSISTANT: Ok, may I know your source and destination airport codes?

USER: My airport codes are AUS - MCO.

ASSISTANT: Ok, please provide me your departure and arrival time.

USER: Already mentioned above.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: May I know your class preference?

USER: I do not have any class preferences.

ASSISTANT: I am sorry to inform you that there is no flight available on your preferred travel dates.

USER: No issues, thank you.

ASSISTANT: You are welcome and thank you for choosing us.