You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I want to change my recent reservation, due to some health issues. Can you please help me with this?

ASSISTANT: Sure, I will help you with that. Please wait for a minute.

USER: Sure.

ASSISTANT: May I know your good name?

USER: Sure, my name is Paul Harris.

ASSISTANT: Sorry, there is no active reservation found on your name.

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

ASSISTANT: Thank you for reaching us.