Hello.
user
Hello,. How can I oblige you today?
assistant
I would like to change my reservation due to heavy floods at my destination place, so aid me in changing.
user
Sure, we are here to aid you. Let me know the your name to check with the reservation.
assistant
Sure, my name is Alexander Nelson.
user
Please, stay online.
assistant
Sure.
user
Thanks for your time, there is no reservation found with your name  Alexander Nelson.
assistant
No problem, thanks for your quick response.
user
Thank you for availing us.
assistant