Hello.
user
Hello, how may I support you?
assistant
I want to change my recent reservation as my joining date got postponed. Can you help me in changing?
user
Sure, may I know your name to check the database and revert you?
assistant
My name is Sarah Martinez.
user
 I have checked in reservation list to change your ticket, but could not find any reservation with your name.
assistant
No issues, thank you for your information.
user
Thank you for opting us.
assistant