You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Larry Rodriguez.

ASSISTANT: How may I assist you?

USER: Please help me out in booking the ticket from LAX on 01/03.

ASSISTANT: Larry Rodriguez, may I know your returning details from this journey?

USER: Sure, my destination place is SFO on 01/05.

ASSISTANT: Ok, please wait for a moment.

USER: Ok. no problem.

ASSISTANT: Sorry to tell you, there is no flight available on your request.

USER: No issues, thank you for informing.

ASSISTANT: Your most welcome.