Hi.
user
Hello, how may I aid you today?
assistant
I am unable to modify my reservation, can you help me to modify?
user
Sure, we are here to help you.
assistant
Thank you.
user
May I know your name please?
assistant
Andrew Wright is my name.
user
Ok, please wait for a while.
assistant
OK.
user
Sorry we could not find any reservation with your name.
assistant
Ok, no problem. Thanks for the information.
user
Thank  you for reaching us.
assistant