You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Brian White. I would like to book a ticket from EWR to LAX, can you please help me out?

ASSISTANT: Sure, can you share your trip dates?

USER: I am travelling on these dates 03/09 and 03/11.

ASSISTANT: Give me a minute.

USER: Ok, I will wait.

ASSISTANT: Sorry, there is no flight on your given dates.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for opting us.