Hi.
Hello.
I am Dennis lopez.
How can I render you at this moment?
I need to change my existing reservation, Can you please help me with that?
Sure, I will help you.
Thank you.
Please wait let me check the current status.
Sure.
Sorry  Dennis Lopez, no reservation found on your name in our data base.
Ok, no problem. Thanks for your information.
Thank you for contacting us.