Hello.
user
Hello, how may I assist you?
assistant
I am Jonathan Robinson. I have booked one ticket for me earlier but, my plan has changed recently. So, I want to change my existing reservation? Can I have your assistance?
user
Sure, I will assist you changing the reservation. Please wait for a moment.
assistant
OK.
user
Sorry, there is no reservation found on your name to change.
assistant
Ok, no issues. Thanks for your time.
user
Thank you for reaching us, have a good day.
assistant