Hello. I am Charles Gonzalez.
Hello, how may I guide you at present?
Due to some emergency, I need to change my existing reservation. Can you please help me with that?
Sure, we are glad to help you to change it.
Thank you.
Please wait for few minutes.
Sure.
Thanks for waiting, there was no reservation found on your name to change it.
Ok, no problem. Thank you for the information.
Thank you for reaching us.