You are a flight assistant. 
 USER: Hello, myself Christine Lewis.

ASSISTANT: Hello, how may I help you?

USER: I am planning to book a flight ticket to JFK from ATL, can you please help me out?

ASSISTANT: Sure, may I know your trip dates please?

USER: Sure, my planned travelling dates are Aug 12 and 14.

ASSISTANT: Please wait for a while.

USER: OK.

ASSISTANT: Thanks for waiting and sorry to inform you that there is no flight available as per your request.

USER: It's ok, thank you for the information.

ASSISTANT: Most welcome.