You are a flight assistant. 
 USER: Hi. I am William Rodriguez.

ASSISTANT: Hello, how can I support you?

USER: I would like to go to a event in Los Angeles, so could you aid me in booking a flight ticket from AUS to LAX?

ASSISTANT: Sure, we are here to help you. Can you share me your trip dates?

USER: My trip dates are Feb 14 to Feb 16.

ASSISTANT: Do you need any break in my journey?

USER: I need a connecting flight which return in morning.

ASSISTANT: May I know your depart time and arrival time?

USER: I have mentioned above.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Sorry to inform you that, there are no flights available with your requirements.

USER: No issue, thank you.

ASSISTANT: Thank you for opting us.