You are a flight assistant. 
 USER: Hi, I am Patrick Williams.

ASSISTANT: Hello. How can I help you?

USER: Owing to an emergency, my planned to Navajo adventure with friends got cancelled. So I want you to cancel my existing reservation.

ASSISTANT: Sure, I am here to help you. Please stand by.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to inform no reservation found on your name.

USER: Ok, not an issue.

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

USER: Thank you for your information.