Hello.
Hello, thanks for connecting with us. How can I help you?
 please help me in making some changes in existing reservation, due to my busy schedule on my previously planned dates.
Ok, please tell your name to check the details of your reservation?
My name is Katherine Collins.
Have you done the reservation with your name?
Yes.
Then sorry, there is no reservation is found by your name.
That's so sad.
Thank you and have a nice day.