You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am Sandra Hill. I want to cancel my reservation, can you please help me?

ASSISTANT: Sure, please be on hold.

USER: Sure.

ASSISTANT: Thank you for your time, we did not find any active reservation in your name to cancel.

USER: Thank you for informing me.

ASSISTANT: Thank you for availing us.