Hi, I am William Turner.
Hello, how may I be at your assistance?
Can you please help me to change an existing reservation due to my health issues?
Sure, we are rapturous to help you.
Thank you.
Please give me a moment.
Sure.
  Thank you for waiting, but I am sorry to say that, there is no active reservation found with your name in our database to change it.
Ok, not an issue. Thank you for help.
Thank you for approaching  us.