You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: I am Linda Perez, I need to book a flight ticket to AUS from LAX. Can you please aid me to book a flight ticket?

ASSISTANT: Sure, I will help you out.

USER: Thank you for considering my request.

ASSISTANT: May I know your travelling dates please?

USER: My travelling dates are 08/12 and 08/14.

ASSISTANT: Sorry, there are no flights found.

USER: Not a problem, anyway thank you for the help.

ASSISTANT: Thank you for choosing us.