Hi.
user
Hello, how can I address you?
assistant
I want to change my existing reservation which is done recently due to some problems, can you please help me in this?
user
Sure, may I know your name to check your reservation from our database?
assistant
Sure, my name is Kevin Johnson.
user
We regret to inform you that there is no active reservation found on your name to change.
assistant
Ok, no problem. Anyways, thank you for your service.
user
Thank you for contacting us.
assistant