You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I need to book a flight ticket from AUS to PHX, can you help me in booking a flight ticket?

ASSISTANT: Sure, please share your planned travel dates?

USER: Sure, my journey dates are Nov 21 and Nov 23.

ASSISTANT: Do you have any connection limit?

USER: I prefer a direct flight.

ASSISTANT: Any other preferences?

USER: I want to fly in a business class.

ASSISTANT: Can I have your name please?

USER: Sure, Jonathan Miller here.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, no flights found with your given details.

USER: Ok, no issues. Thank you for your assistance.

ASSISTANT: Thank you for opting us.