Hello.
user
Hello, how may I aid you?
assistant
I already have a reservation to have a trip with my friends. Due to shortage of holidays trip has been postponed. Can you please change my existing reservation?
user
Sure, may I know your good name?
assistant
My name is Brian Hill.
user
Please wait for a minute.
assistant
Sure.
user
Sorry to inform that there is no reservation found with your name.
assistant
No problem. Thanks for helping me.
user
Thank you for availing us.
assistant