You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Owing to an emergency, my planned trip to Navajo adventure got cancelled.

ASSISTANT: Ok.

USER: So I want you to cancel my existing reservation.

ASSISTANT: Sure, we are here to help you. May I know your good name?

USER: Sure, Stephanie Carter here.

ASSISTANT: Please, stay online. I will check the previous list and revert to you.

USER: Sure.

ASSISTANT: Thank you for your valuable time. We are sorry to inform you that, no reservation was found on your name to cancel.

USER: Ok, not an issue. Thank you for your assistance.

ASSISTANT: Thank you for reaching us, have a good day.