You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: I am Emma Adams. Can you help me in booking from AUS to SFO, as there is a sports meet to attend at San Francisco?

ASSISTANT: Sure, we are glad to assist you in booking.

USER: Ok.

ASSISTANT: Kindly share your planned travelling dates to proceed further.

USER: My trip dates are 02/13 to 02/15.

ASSISTANT: Ok, please wait a moment I will search best flight for you.

USER: Sure.

ASSISTANT: Thank you for waiting, we are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.

USER: No issue, thank you for checking.

ASSISTANT: Thank you for approaching us.