Hello.
user
Hello, how can I assist 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, I am here to help you. May I know your name?
assistant
Sure, my name is Donna Hernandez.
user
I am sorry to say you that there is no reservation found under your name in our database.
assistant
Ok, no problem. Anyways, thank you for your service.
user
Thank you for choosing us.
assistant