Hi.
user
Hello. How can I help you today?
assistant
I am Edward Moore, due to health issues I would like to change my existing reservation, so can you help me for this?
user
Ok, please wait for a while, I will check your name in our records and revert you back.
assistant
Ok, I will wait for your response.
user
Sorry Edward, there is no reservation found with your name.
assistant
Oh! it's ok, no problem. Thank you for your services.
user
It's my pleasure.
assistant