Hello. I am Michael Adams.
Hello, how may I serve you at this moment?
I need to amend my reservation due to some issues, can you help me out?
Sure, I will help you. Please send your travelling dates.
Ok, first check with my reservation details.
Sure, I will check. Please wait for a moment.
Ok.
Sorry, there is no reservation existing on your name.
That's ok, not an issue. Thank you.
You are welcome, have a nice day.