Hello.
user
Hello, how can I help you today?
assistant
I am Jack Gonzalez. I am planning to change an exiting reservation, due to health issue.Can you please change my reservation?
user
Sure, please wait for a moment.
assistant
Thank you.
user
Sorry to say that, no reservation was found with your good name.
assistant
That'd fine, thank you for your service.
user
Thank you for reaching us.
assistant