Hello.
Hello, how may I assist you at this moment?
Can you please change my existing reservation?
Sure, we are here to help you to change it.
Thank you.
May I know your name please?
My name is Mark Lopez.
Ok, please wait for a while.
Sure.
Thanks for your time, there was no reservation found on your name to change it.
No problem, thank you.
Thank you for availing us.