Hi, I am Patrick Turner.
Hello, how may I assist you now?
Owing to an emergency, my planned trip to Detroit has been postponed. So I request you to change my existing reservation.
Sure, please wait for a moment.
Sure.
Thank you for waiting, sorry there is no reservation found on your name.
Ok, no worries at all. Thank you for your help.
Thank you for visiting us, we hope see you again.