Hello,.
Hello, What can I do for you today?
I am Benjamin Lopez. I made a reservation earlier to attend a get together party with my college friends. Due to some issues in college it  got postponed. Can you please change my existing reservation?
Sure, please wait a minute.
Ok.
Thank you for waiting, no reservation was found on the name Benjamin Lopez in our database.
Ok, no issue. Thank you.
Thank you for reaching us.