Hello. I am James Lewis.
user
Hello, do you need any help from us?
assistant
I am planning to change an existing reservation, due to health issue. Can you please change my reservation?
user
Sure, I am glad to assist you.
assistant
Thank you.
user
Sorry, there is no reservation with your name in our portal to change further.
assistant
That's fine. Thank you for your service.
user
You are welcome.
assistant