Hello.
user
Hello. How may I assist you?
assistant
I am Andrew Lewis. I am planning to change an existing reservation, due to health issue.
user
Ok, wait for a while I will check your reservation whether existed or not.
assistant
Sure, I will wait.
user
Thanks for your time, there is no reservation under your name.
assistant
That's fine. Thank you for your help.
user
Welcome Andrew Lewis.
assistant