Hi.
user
Hello, how can I assist you today?
assistant
I want to change my existing reservation which is done recently due to some problems, can you please help me?
user
Sure, may I know your name please?
assistant
Sure, my name is Brenda King.
user
Ok, please wait for a while.
assistant
Sure, I will wait.
user
Sorry, there was no reservation found with your given name.
assistant
Ok, that's fine. Anyways, thank you for your service.
user
Thank you.
assistant