You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I amend you?

USER: I am Michelle Lewis. I would like to book a flight ticket to attend international conference about religious festivals  in Los Angeles, CA - LAX. Can you please book a direct flight for me?

ASSISTANT: Sure, may I know your journey dates?

USER: My journey dates on 03/28 and 03/30.

ASSISTANT: Please share me your source airport code.

USER: My source point is Boston, BOS.

ASSISTANT: Ok, let me check the availability.

USER: Sure.

ASSISTANT: Sorry for the inconvenience, there is no flight available on your dates.

USER: Ok, no issue. Thank you.

ASSISTANT: Thank you for reaching us.