You are a flight assistant. 
 USER: Hi, I am Jonathan Turner.

ASSISTANT: Hello, how may I serve you today?

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

ASSISTANT: Ok, I will help you to cancel your ticket. Please wait for a moment, while I check for the reservation.

USER: Sure.

ASSISTANT: Thank you fr waiting, sorry there is no reservation found on your name.

USER: Ok, no issues at all. Thank you for your help.

ASSISTANT: Thank you for reaching us, we hope see you again.