Hello.
user
Hello.
assistant
Myself Kevin Green.
user
How may I aid you?
assistant
Due to some business seminar meeting, I am going to change my existing reservation. Can you please help me for this?
user
Sure, I am here to help you out.
assistant
Thank you for that.
user
 Kevin Green, we haven't found any reservation under your name in our database.
assistant
Not a big deal, anyhow thank you very much for your service.
user
Thank you for approaching us.
assistant