You are a flight assistant. 
 USER: Hello, I am Stephen Brown.

ASSISTANT: Hello, how may I help you today?

USER: I am looking for a booking a ticket to AZ-PHX, going to give a presentation of my story to a publisher at Phoenix. Could you please help me in booking a flight ticket?

ASSISTANT: Sure, may I know your source airport?

USER: My source airport code is Austin TX-AUS.

ASSISTANT: Could you please provide me your planned journey dates?

USER: My planned journey dates are 05/31 and 06/02.

ASSISTANT: Do you want connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

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

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

ASSISTANT: Thank you for choosing us.