You are a flight assistant. 
 USER: Hello, I am Jeffrey Parker.

ASSISTANT: Hello, How can I support you today?

USER: I want to celebrate my step mother birthday on 11/06 at JFK. Can you please help me to book a ticket?

ASSISTANT: Sure, We are glad to help you. Can you please provide me your origin and return date?

USER: My origin is LAS and return on 11/08.

ASSISTANT: Ok, Just a moment.

USER: Ok.

ASSISTANT: Thank you for waiting.

USER: Thank you.

ASSISTANT: Unfortunately there are no flights found on your requested dates. Thank you for contacting us, Have a nice day.

USER: Thank you.