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