Hi.
Hello, may I know your name please?
I just want to change an existing reservation due to my exams got post pone, can you please check the reservation with the name John Martinez?
Can you please wait for a moment, I will check with your reservation.
Sure.
Sorry, we did not find any reservation registered with us on your name.
Not an issue, thanks for your information.
Thanks for reaching us, have a good day.