You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I want to cancel my recent reservation, due to the ongoing tornado at my destination. Can you please help me for cancellation?

ASSISTANT: Sure, may I know your good name?

USER: Sure, I am Joseph Harris.

ASSISTANT: Wait a minute, let me check your active reservation and revert to you.

USER: Sure, I will wait.

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

USER: Ok, Thank you for your help.

ASSISTANT: Thank you for availing us.