Hello.
user
Hello, how can I help you?
assistant
 I am Betty Wright want to change my reservation due to prepone of my trip with friends. Can you help me in changing my reservation?
user
Sure, please wait for a moment.
assistant
Ok.
user
Sorry, there was no reservation found with your name.
assistant
Ok, no problem. Thank you for your response.
user
Thank you for choosing us.
assistant