Hi.
user
Hello, may I know your name please?
assistant
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?
user
Can you please wait for a moment, I will check with your reservation.
assistant
Sure.
user
Sorry, we did not find any reservation registered with us on your name.
assistant
Not an issue, thanks for your information.
user
Thanks for reaching us, have a good day.
assistant