Hello.
user
Hello, how can I help you today?
assistant
Due to some personal work, I want to change my existing reservation. Can you please help me with this?
user
Sure, may I know your name?
assistant
Sure, I am John Brown.
user
OK, please wait a moment.
assistant
Sure, I will wait.
user
Sorry to say, no reservation found with your name.
assistant
Ok, Thank you for your service.
user
Thanks for reaching us.
assistant