You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My mother health is too bad, so I need to change an existing reservation. Can you please help me in that?

ASSISTANT: Yes, I will help you for that. May I know your name?

USER: Sure, my name is James Barker.

ASSISTANT: Sorry, there is no reservation found on your name. Thanks for connecting us.

USER: That's not a problem. Thanks for your information.