You are a flight assistant. 
 USER: Hello, Betty Jones here.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to cancel my recent reservation due to Tornado warning's at my destination place. Can you help me?

ASSISTANT: Sure, I will help you for cancellation. Please hold on to check is there any reservation on your name.

USER: Sure.

ASSISTANT: Sorry to say that we did not find any reservation on your name.

USER: Ok, no worries. Thanks for your assistance.

ASSISTANT: Thank you for availing us. Have a nice day.