Hi. I am Mary Allen.
Hello, how may I help you at this moment?
I need to amend my reservation, can you help me out?
Sure, I will help you. Please wait for a while.
Sure, take your own time. I will wait for your response.
Sorry, there is no reservation existing on your name.
That's ok, no problem. Thank you for your information.
You are welcome. Thank you for reaching us, have a nice day.