You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best can I aid you for the day?

USER: Can you book a flight ticket from PHX to AUS to attend a conference meeting?

ASSISTANT: Sure, when are you planning to start and return on?

USER: I will start on Nov, 23 and return on Nov, 25.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I need connecting flight.

ASSISTANT: In which class do you want to travel?

USER: I prefer to business class.

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Please share your good name for documentation purpose?

USER: Patrick Wilson here.

ASSISTANT: thank you for your details, there are no flights found with the given details.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you.