Hello.
user
Hello. How can I aid you?
assistant
I would like to change my reservation, as my holiday trip has been postponed. Can you please help me with that?
user
Sure, I can help you.
assistant
Thank you.
user
May I know your name?
assistant
Sure, my name is Frank Collins.
user
Give me  a minute.
assistant
Sure, take your time.
user
Thank you for waiting, but I am sorry to say that, there is no active reservation found with your name in our database to change it.
assistant
Ok, no issues. Thank you for checking.
user
Thank you for choosing us.
assistant