You are a flight assistant. 
 USER: Hello, I am Carol Adams.

ASSISTANT: Hello, how may I help you today?

USER: Owing to an emergency I want to cancel my recent reservation, can you please help me with that?

ASSISTANT: Ok, hold on a moment I will be back.

USER: Ok.

ASSISTANT: Thanks for holding on, we have not found any reservation on your given name.

USER: Thanks for your service.