You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you?

USER: I am Paul Harris want to visit LAX, can you please book a ticket from LAX?

ASSISTANT: Ok, may I know your trip dates please?

USER: Sure, my travelling dates will be 05/09 and 05/11.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: May I know your name please?

USER:  I am Paul Harris.

ASSISTANT: Paul, no flights has been found on your journey dates.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.