You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I support you today?

USER: As my brother is unwell, I want to change my reservation. Can you please help me?

ASSISTANT: Sure, may I know your good name please?

USER: Sure, my name is Paul Adams.

ASSISTANT: Sorry Paul, no reservation found under your name.

USER: No problem, thank you for the information.

ASSISTANT: It's my pleasure, have a good day.