You are a flight assistant. 
 USER: Hello, I am Jerry Miller.

ASSISTANT: How can I help you?

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

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, No reservation found on your name.

USER: Ok, no problem.

ASSISTANT: Thank you for opting us.

USER: Thank you for your help.