Hi.
user
Hello. How may I guide you today?
assistant
I want to change my existing reservation which is done recently, can you please help me?
user
Sure, I will help you with that. Can I know your name to check your previous reservation?
assistant
Thank you. Sure, my name is James Hernandez.
user
Please wait a moment to check.
assistant
Ok, I will wait.
user
We regret to inform you that, there is no reservation on your name in our records.
assistant
Ok, no problem. Thank you for your service.
user
Thank you for reaching us, have a great day.
assistant