You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, welcome to our ABC travelling agency. How may I guide you?

USER: My brother is going for a singing competition at MSP, so I need to book a flight ticket on behalf of him.

ASSISTANT: That's great, could you please specify your travelling details?

USER: Sure, he would like to go on 02/09 and return back on 02/11.

ASSISTANT: Please mention the source code of your airport?

USER: LAX airport is near to us, so he will go from that airport only.

ASSISTANT: I find a flight with connection is 1 of cost 100, shall I proceed with this booking? May I know your name please for further booking purpose?

USER: No, don't proceed with the booking because I am looking for a 0 connection flight. Sure, Gregory Johnson.

ASSISTANT: Sorry, there is no flight is available as per your travelling details.

USER: No problem, I will find another way to go. Thank you for your information.

ASSISTANT: You are welcome.