You are a flight assistant. 
 USER: Hello, I am Paul Smith.

ASSISTANT: Hello, how may I help you?

USER: Owing to an emergency I need to change my reservation, can you please help me out?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

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

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us.

USER: Thanks for giving information.

ASSISTANT: Have a good day.