Hello.
user
Hello, how may I assist you?
assistant
I want to change my existing reservation because of some urgent work.
user
Ok. Let me know your name to change your reservation?
assistant
Sure, my name is Charles martin.
user
Ok, please wait for a moment.
assistant
Sure, take your time.
user
Thanks for waiting, no reservation found with your name to change.
assistant
Ok, no problem.
user
Thanks for approaching us, have a nice day.
assistant
Thank you for your service.
user