You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to book a ticket from AUS to DTW, can you please help me out?

ASSISTANT: Sure, may I knwo your trip dates?

USER: I am travelling on these dates May 12th and 14th.

ASSISTANT: Do you have any other requirements?

USER: I need single connected flight. I don't have any other requirements.

ASSISTANT: May I know your name please?

USER: Book the ticket on the name Benjamin Harris.

ASSISTANT: Sorry, we regret to inform you that there is no flight available as per your request.

USER: Ok no problem, thank you for your services.

ASSISTANT: Most welcome.