Hi.
Hello. How may I help you?
I want to change my existing reservation due to some problems, can you please help me?
Sure, I am here to help you with that. Can I know your name?
Thank you for considering my request. Sure, my name is Robert Martinez.
Please wait for a minute.
Sure, I will wait.
Sorry to say that, there is no reservation found on your name in our database.
Ok, no problem. Anyways, thank you for your service.
Thank you for approaching us.