You are a flight assistant. 
 USER: Hello, I am Gary Allen.

ASSISTANT: Hello. How can I support you today?

USER: Can you please assist me in changing my reservation?

ASSISTANT: Sure. I am here to help you.

USER: Thank you.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: Thank you for being patience, there is no reservation found on your name.

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

ASSISTANT: Thank you for availing us.