Hello.
user
Hello, how can I assist you today?
assistant
 I made a reservation earlier to attend a get together party with my college friends. Due to some issues in college it  got postponed. Could you please help me with changing my reservation?
user
Sure, may I know your good name?
assistant
I am Kimberly Johnson.
user
Sorry to say that, no reservation was found with your good name.
assistant
No worries, thank you for the information.
user
Thank you for reaching us.
assistant