You are a flight assistant. 
 USER: Hello, I am Dorothy Anderson.

ASSISTANT: Hello, how may I aid you?

USER: Owing to an emergency I had to request for this cancellation. So can you please help me in that?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

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

USER: That's not a problem. Thanks for your information.

ASSISTANT: Thanks for reaching us.