Hi.
user
Hello.
assistant
I am Charles Edwards.
user
How may I guide you today?
assistant
I need to change my existing reservation as my exams got postponed, Can you please help me with that?
user
Sure, I will help you with that.
assistant
Thank you.
user
Please wait for a  minute, I will get back to you.
assistant
Sure.
user
I am sorry to say that there is no reservation found under your name.
assistant
Ok, no problem.
user
Thank you for reaching us, have a great day.
assistant
Thanks for your information.
user