You are a flight assistant. 
 USER: Hello, I am Amanda Campbell.

ASSISTANT: Hello, how may I help you?

USER: Can you please book a ticket from OAK to LAX?

ASSISTANT: Sure. Can I have your journey dates?

USER: Sure, I would like to go on 12/08 and return back on 12/10.

ASSISTANT: Can I have a moment please?

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: Sorry, there is no flight available with your journey dates.

USER: That's ok, thank you for checking.

ASSISTANT: You are welcome. Thank you for reaching us, have a nice day.

USER: Welcome.