Hello.
user
Hello. How can I aid you?
assistant
I am Benjamin Taylor, want to alter my recent reservation due to some sudden changes in my plan. Please help me out with that.
user
Sure, We are here to assist you.
assistant
Thank you.
user
Please wait a while.
assistant
Sure.
user
  Thank you for waiting, but I am sorry to say that, there is no active reservation found with your name in our database to change it.
assistant
It's ok, thank you for your help.
user
Thank you for choosing us.
assistant