You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. how may I help you today?

USER: Due to bad weather, I want to cancel my recent reservation. Can you please help me?

ASSISTANT: Sure, can I have your name please?

USER: Thomas Thompson here.

ASSISTANT: Ok, hold on I will be back.

USER: Sure.

ASSISTANT: Thanks for waiting, we are sorry to say you that we have not found any reservation on your given name.

USER: No problem. Thanks for the valuable information.

ASSISTANT: Thank you for contacting us.