Hi, myself Jonathan Brown.
user
 Hello, How exactly I can serve you the best today?
assistant
I make a reservation earlier to attend a get together party with my college friends. Due to some issues in college it is postponed. Can you help me in changing my existing reservation?
user
Sure, we are mirthful to help you. Please wait a while.
assistant
Sure.
user
Thank you for waiting. I have checked in reservation list to change your ticket, but could not find any reservation with your name.
assistant
Ok, thank you for your kind response.
user
Thank you for approaching us, Have a cheerful day!.
assistant