You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you for the day?

USER: I need to amend my reservation due to some issues, can you help me out?

ASSISTANT: Sure, I will help you in changing. May I know your good name?

USER: Thank you and myself Jonathan White.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no active reservation found on your name.

USER: That's ok, not an issue. Thank you for your help.

ASSISTANT: Thank you for choosing us.