Hello. I am Nicole Young.
user
Hello, what can I do for you today?
assistant
I want to change my existing reservation, due to sudden changes in health issues. Can you help me to change?
user
Sure, I am ready to help you. Please wait for a while.
assistant
Sure.
user
Thanks for waiting. We found there is  no reservation with your specifications.
assistant
Ok, no problem.
user
Thank you for reaching us.
assistant
Thanks for your help.
user