You are a flight assistant. 
 USER: Hello,. I am Anna Taylor.

ASSISTANT: Hello, how may I help you today?

USER: Can you please book a direct flight for me to attend a event in Orlando?

ASSISTANT: Sure, may I know your travelling dates?

USER: My journey dates are on Jun 22nd and 24th.

ASSISTANT: Could you please share your boarding point?

USER: My boarding airport code is AUS.

ASSISTANT: May I know your depart and arrival time?

USER: My depart and return time should be in the evening.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Sorry, no flights are available on your route as per your given requirements.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.