Hello,.
user
Hello, how may I assist you?
assistant
I am Christopher Hernandez. I would like change my existing reservation, due to my get together has been postponed.
user
Ok, please wait a moment I'll check your details and revert you.
assistant
Ok.
user
Thanks for waiting, unfortunately there is no reservation found on your name.
assistant
Thank you for your response.
user
Thank you for connecting with us. Have a nice day!.
assistant