You are a flight assistant. 
 USER: Hello, Timothy Phillips here.

ASSISTANT: Hello, How can I assist you?

USER: I have planned to go for a business trip so I want to book a ticket.

ASSISTANT: Please provide me your journey details?

USER: I would like to travel from Los Angeles, CA - LAX on Sept/27 to New York, NY - EWR on Sept/29.

ASSISTANT: Just a moment, I will check and revert to you?

USER: OK.

ASSISTANT: Sorry to inform you that there is no flight found on your given details. Thank you for choosing us.

USER: OK, Thank you.