You are a flight assistant. 
 USER: Hello, Daniel Jones here.

ASSISTANT: Hello, how may I amend you today?

USER: I am a techie and I need to attend a workshop on ORACLE in Los Angeles, CA - LAX with my colleagues. Can you aid me for booking from Oakland, CA - OAK?

ASSISTANT: Sure, please share your travelling dates?

USER: Sure, I have a plan to travel on 06/04 to 06/06.

ASSISTANT: Thank you for your details. Unfortunately there are no flight found by the given dates.

USER: That's Ok, thanks for your kind response.

ASSISTANT: Thank you for opting us.