Hello, I am Sarah Carter.
user
Hello, Sarah Carter, how may I help you today?
assistant
I want to change my existing reservation due to my health condition. Please help me for that.
user
Sure, we are happy to service you. Please wait for a minute, I will check the status and notify you.
assistant
Ok.
user
Thank you for waiting, we are sorry to inform you that no reservation has found based on your specified name.
assistant
Not an issue. Thanks for your time.
user
Thanks for communicating with us, have a nice day.
assistant