Hello.
user
Hello, how may I help you for this moment?
assistant
Actually I want to change my existing reservation, due to an emergency. Can you help me?
user
Sure, I am here to help you.
assistant
Thank you.
user
May I know your name please?
assistant
Sure, I am Carolyn Green.
user
Ok, please wait for a mean while.
assistant
Sure.
user
Sorry Green, there is no reservation found as per your name to change your reservation.
assistant
Ok, no problem. Thank you for your information.
user
Anyways, thank you for your service.
assistant