Hello.
user
Hello, how may I aid you today?
assistant
I want to change my existing reservation, can you please help me with this?
user
Sure, please share me your good name.
assistant
My name is Melissa Brown.
user
Please wait for a while.
assistant
Ok.
user
Sorry to say that, there is no active reservation found on your good name.
assistant
No problem, thanks for your information.
user
Thank you for opting us.
assistant