You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Mary Gonzalez.

ASSISTANT: How can I assist you?

USER: I planned to attend for a wedding in SEA, can you please help me to book a flight ticket from AUS?

ASSISTANT: Sure Mary, can I know the travel dates please?

USER: I prefer to travel on 04/27 and 04/29. I need a direct flight.

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: Sorry, there are no direct flights available on your route.

USER: Ok, no problem.

ASSISTANT: Thank you for approaching us.

USER: Thank you for your time.