You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Can you aid me to change my reservation due to an emergency?

ASSISTANT: Sure, can I know your name please?

USER: Gary Scott here.

ASSISTANT: Ok, wait a moment please.

USER: Ok.

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

USER: Ok, thank you for the help.

ASSISTANT: Thank you for approaching us.