Hello.
user
Hello. How can I help you at this moment?
assistant
I am Ronald White. I would like to change my reservation as I am leaving  for family trip, can you please help me out?
user
Sure, I will help you with that. Please wait a moment, I will check your previous reservation status.
assistant
Thank you. Sure.
user
There is no previous reservation available in your name.
assistant
Ok no problem, thank you for your services.
user
Thank you for contacting us, have a good day.
assistant