You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Christopher Hall. Can you help me with cancellation? Because I have to go for other flight due to emergency.

ASSISTANT: Sure, please hold on.

USER: Ok.

ASSISTANT: No reservation found on your name.

USER: Ok. Thank you.

ASSISTANT: Than you, have a nice day.