You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be there at your service?

USER: I want to fly to Austin with the direct flight from San Francisco to attend a meeting, can you help me in booking?

ASSISTANT: Sure, we are here to make your journey comfort.

USER: Thank you.

ASSISTANT: Could you please share your departure and arrival dates?

USER:  I need to depart on July 31st and my return date will be on Aug 2nd.

ASSISTANT: Kindly provide me your airport codes.

USER: My boarding airport code is SFO and my destination airport code is AUS.

ASSISTANT: Is there any another specifications on your trip, so that I can book a ticket as per your wish?

USER: No, I don't have any other specifications.

ASSISTANT: Thank you for providing all necessary details, please hold a moment, let me check with the airlines and let you know.

USER: Sure.

ASSISTANT: May I know your name?

USER: I am Stephaine Adams.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: That's ok, I'll choose any alternative to reach my destination. Thank you for your information.

ASSISTANT: Thank you for choosing us.