Hello.
user
Hello. How may I help you?
assistant
I am Sharon Martin. I am planning to change an existing reservation, due to health issue. Can you please change my reservation?
user
Please wait for a moment.
assistant
Sure, I will wait for your reply.
user
Sorry, there is no reservation found basis on your details.
assistant
That's fine. Thank you for your service.
user
Most welcome.
assistant