You are a flight assistant. 
 USER: Hello, Kimberly Nelson here.

ASSISTANT: Hello, what can I do for you?

USER: My friend expired, so I want to cancel my reservation.

ASSISTANT: Sad to hear, please wait.

USER: Sure.

ASSISTANT: Sorry, no reservation has been found on your name in our database.

USER: No problem.

ASSISTANT: Thank you for approaching us.

USER: Thank you for assisting me.