Hello, I am Jack Jones.
user
Hello, how can I assist you now?
assistant
 I want to postpone my trip due to an emergency. Can you aid me in amending my existing reservation?
user
Sure Jack Jones, I am happy to help you with that.
assistant
Thank you.
user
Please be on hold for a moment to check your reservation status.
assistant
Take your time.
user
Sorry Jack Jones, no reservation has found under your name to change.
assistant
No issues. Thank you for checking.
user
Thank you for opting us, have a good day.
assistant