You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I want to cancel my reservation as my grandmother is sick, can you please help me?

ASSISTANT: Sure, may I know your good name?

USER: My name is Benjamin Robinson.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: No problem. Thank you for checking.

ASSISTANT: Thank you for reaching us.