Hi, I am William Perez.
Hello, how may I assist you today?
Due to the illness of my granddad, I am unable to catch a flight. So please cancel my recent reservation?
Sure, I will help you. Please wait for a while, I will check and get back to you.
Sure.
Thanks for your time, sorry, there is no reservation found on your given name.
Ok, no worries at all. Thanks for your kind service.
Thanks for choosing us.