You are a flight assistant. 
 USER: Hello. I am Ryan Edwards.

ASSISTANT: Hello, How can I help you?

USER: Please, help me in changing my reservation as my plan to meet my grand father got postponed.

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Thanks for waiting. There is no reservation on your name.

USER: Ok, not an issue. Thank you for the information.

ASSISTANT: Thank you.