Hello.
user
Hello, how can I help you?
assistant
Myself Donald Green. I would like to change my recent reservation due to some personal issues, will you help me with that?
user
Sure, please wait for a moment.
assistant
Thank you for accepting my request, I will wait for your response.
user
Sorry, there was no reservation found with your given name.
assistant
Ok, not an issue. Thank you for your information.
user
Thank you for opting us.
assistant