You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Raymond Jones here.

ASSISTANT: Jones, how may I aid you?

USER: I would like to visit New York, can you help me to book a flight ticket from LAX to EWR?

ASSISTANT: Sure, please provide your travel dates.

USER: My planning dates are 05/03 and 05/05.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no flight is available on your route.

USER: It's ok, not an issue.

ASSISTANT: Thank you for choosing us.