Hello, I am David Perez.
Hello, how can I provide assistance to you?
Due to an emergency meeting, I want to change my reservation. Can you help me with it?
Sure, we are ecstatic to help you. Please wait for a while, I will check the reservation status and get back to you.
OK.
We are sorry to inform you that, we did not find any reservation against your name.
No problem, thank you for the information.
Thank you for contacting us.