Hi.
user
Hello, how may I help you today?
assistant
I am Rebecca Hall. Due to some issues I need to change my existing reservation, Can you please help me with that?
user
Sure, I will help you. Please wait a moment.
assistant
Sure.
user
Sorry, there is no reservation found on your given name.
assistant
Ok, no problem. Thanks for your information.
user
Thanks for choosing us.
assistant