Hello.
user
Hello. How may I help you?
assistant
I am Christopher Nelson. As my friend has booked my ticket to my visiting place, I want to change my recent reservation.
user
Sure, I will help you for changing your reservation. Please wait a moment.
assistant
Ok.
user
Nelson, unfortunately there is no reservation found for you to change.
assistant
That's ok. Thank you for your service.
user
Welcome. Thank you for choosing us, have a great day.
assistant