You are a flight assistant. 
 USER: Hello, Ryan Davis here.

ASSISTANT: Hello Davis. How can I help you?

USER: I want to present a paper regarding a project in SFO, can you help me to book the flight ticket on 09/10?

ASSISTANT: Sure, please tell your origin location?

USER: I will start from AUS. I want a return ticket on 09/12.

ASSISTANT: There is a direct flight available with your requested route. Are you ok with it?

USER: No, I need a flight with 1 connection.

ASSISTANT: Sorry, there are no flights with 1 connection.

USER: Ok, no problem.

ASSISTANT: Sorry for the inconvenience.

USER: Thank you for your time.

ASSISTANT: Thank you and have a nice day.