You are a flight assistant. 
 USER: Hello. Ryan Moore here.

ASSISTANT: Hello, how may I aid you today?

USER: Do you have nay flight from AUS to IAD to attend a birthday party?

ASSISTANT: Sure, we are perky to help you.

USER: My travel dates are 06/07 and 06/09.

ASSISTANT: Ok, Do you prefer any halt in between journey?

USER: Yes, I want 1 halt.

ASSISTANT: Thank you for providing your details, please wait for a while.

USER: Sure.

ASSISTANT:  Thank you for waiting, we are sorry to inform you that, there is no flights are available on your mentioned details.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for reaching us. Have a good day.