Hello.
Hello. How may I help you?
I want to do some changes in the existing reservation because my friends are not able to come on the those dates, can you please help me?
Give me a moment.
Sure.
Sorry, I didn't found any reservation basis on your details.
It's ok.
Can I know your name for further proceedings?
My name  is Joshua Perez.
Thank you for reaching us.
Thank you for your time.
Most welcome.