Hi, my name is Mary Adams.
user
Hello, how can I aid you?
assistant
Due to some personal issues, so I want to change my existing reservation. Can you aid me with this?
user
Sure. Please wait for a moment.
assistant
Sure.
user
Unfortunately, we did not found any reservation on your good name.
assistant
Ok, no worries. Thanks for your information.
user
Thanks for opting us.
assistant