Hi, I am Margaret Walker.
Hello, how can I render you Walker?
Owing an emergency want to cancel my reservation, so can you help me with it please?
Sure, I will help you in doing that.
Thank you.
Please wait for a while.
Ok, take your time.
Sorry  Margaret Walker, no reservation found on your name in our data list.
That's ok. Thank you for the response.
Thank you for choosing us, have a nice day.