You are a flight assistant. 
 USER: Hello. I am Ruth Campbell.

ASSISTANT: Hello, do you need any help from us?

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

ASSISTANT: Sure, may I know your trip dates?

USER: I planned to travel on 01/07 and 01/09.

ASSISTANT: Sorry, there is no flight on your requested travelling dates.

USER: Ok, no problem. Thank you for your time.

ASSISTANT: Thank you for opting us, have a nice day.