You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Sarah Martin. Can you please cancel my reservation as my plan to meet my friend as been postponed?

ASSISTANT: Sure, please wait.

USER: Sure.

ASSISTANT: Sorry, we could not find any reservation on your name.

USER: No problem. Thank you.

ASSISTANT: Thank you for reaching us.