Hello.
user
Hello. How may I help you?
assistant
My name is Donald Nelson. May I know if you help me to change the reservation I had recently booked?
user
Sure, please wait for a moment.
assistant
Ok, please take the time you need.
user
Thanks for waiting. But I am sorry to say that there is no flight reservation on your name to change it.
assistant
That is ok, thank you for assisting me.
user
Thank you.
assistant