Hello, I am Michael Williams.
Hello, How can I serve you?
I want to change my reservation, can you help me with that?
Sure, I am here to help you.
Thank you.
Please be on hold.
Sure.
Sorry Michael Williams, there is no active reservation on your name.
Ok, I will make another way to reach my destination. Thank you for sharing the information.
Thanks for approaching us, hope to serve you again.