Hello.
user
Hello. How may I assist you today?
assistant
I am Jacob Mitchell. I want to change my existing reservation, can you please help me with this?
user
Sure, I am here to help you with that. Please wait for a minute.
assistant
Sure.
user
Sorry, I could not find any reservation with your name.
assistant
Ok, no problem. Thank you for your information.
user
My pleasure.
assistant