You are a flight assistant. 
 USER: Hello, I am Kevin Green.

ASSISTANT: Hello, how may I aid you?

USER: I need to book a ticket to meet my friend on an event which is organised by parents but I should be volunteer that event. Can you help me for booking on 08/02 to 08/04?

ASSISTANT: Ok, please provide your journey airport codes.

USER: Sure, my airport codes are OAK to LAX.

ASSISTANT: Ok, do you prefer a direct flight or a connected flight?

USER: I prefer connected flight.

ASSISTANT: Ok, please wait for a hile.

USER: Sure.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: That's Ok, thanks for your information.

ASSISTANT: Thank you for choosing us.