You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I would like to book a flight ticket from LAX to attend a client meeting in AUS, can you help me in booking?

ASSISTANT: Sure, please share your journey dates?

USER: I intend to start on 09/20 and my return date will be on 09/22.

ASSISTANT: Do you have any specifications?

USER: I want to fly with the connecting flight.

ASSISTANT: Is there any class preferences?

USER: I am comfortable with any class.

ASSISTANT: May I know your good name?

USER: I am Donna King.

ASSISTANT: Sorry, no flights found on your given details.

USER: That's ok, I'll choose any alternative to reach my destination.

ASSISTANT: Thank you for choosing us.

USER: Thank you.