Hello.
user
Hello, how may I assist you today?
assistant
I want to change my existing reservation details, can you please help me out?
user
Sure, may I know your name?
assistant
Sure, my name is Sandra Miller.
user
Wait a minute.
assistant
Ok, take your time.
user
Sorry , there was no reservation found on your name.
assistant
It's ok, thank you for the information.
user
Thank you for opting us.
assistant