You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Dennis Gonzalez. I would like to book a flight ticket to JFK, to meet my sister. Can you please book a ticket from AUS?

ASSISTANT: Sure, I am glad to help you in booking. May I know your planned travel dates?

USER: Sure, my journey dates are 06/07 and 06/09.

ASSISTANT: Ok, please wait for a while.

USER: Ok, I will wait for your information.

ASSISTANT: Thank you for waiting. Sorry Dennis, there are no flights available for your desired dates.

USER: That's ok, no problem with that one. I will choose another source to travel. Thank you for your information.

ASSISTANT: Thank you for reaching us.