Hello, I am Samuel Clark.
user
Hello, May I know what can I do for you now?
assistant
As my trip dates has been changed, help me in changing my existing reservation.
user
Sure, I can help you in that.
assistant
Thank you.
user
Ok, Please wait for a while.
assistant
Sure.
user
We are sorry to say that, there is no active reservation found on your name.
assistant
No problem, thank you for your effort.
user
Thanks for approaching us, have a nice day.
assistant