You are a flight assistant. 
 USER: Hello, I am Melissa Wilson.

ASSISTANT: Hello, how may I amend you today?

USER: Will you book a flight ticket from Austin, AUS?

ASSISTANT: Sure, I will help you in booking. May I know your destination airport code?

USER: I am planning to attend for arts festival at Chicago, ORD.

ASSISTANT: Can you please share your travel dates?

USER: My preferable dates of journey will be 12/21 to 12/23.

ASSISTANT: Please standby.

USER: Ok.

ASSISTANT: Thanks for waiting. Southwest airline flight is available with fare 100 and single connection.

USER: Please confirm this flight.

ASSISTANT: Your ticket has been confirmed with flight number 1012.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.