You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gary Campbell.

ASSISTANT: How may I help you?

USER: I have to attend a client meeting at Austin, can you please help me in flight ticket booking from OAK to AUS?

ASSISTANT: May I know your travel dates?

USER: Sure, I would like to departure on 09/21 and return back on 09/23.

ASSISTANT: According to your information, I have found a direct flight in your journey with a minimum fare of 100 with flight number 1013. Shall I proceed with this flight?

USER: I am ok with the flight, you can confirm my flight ticket booking in the above flight.

ASSISTANT: Your booking is done.

USER: Thank you for your enormous help in my flight ticket booking.

ASSISTANT: Most welcome.