Hello.
user
Hello, how may I aid you?
assistant
I want to change my existing reservation due to some problems, can you please help me?
user
Sure, I am gleeful to help you out. Please provide me your name.
assistant
Sure, my name is Jeffrey Roberts.
user
Please wait a moment.
assistant
Sure, take your time.
user
Sorry Roberts, there is no active reservation on your name in our database.
assistant
Ok, no problem. Thank you for your service.
user
Thank you for reaching us.
assistant