Hello.
user
Hello. How can I help you?
assistant
I am Jack Lopez.
user
Ok.
assistant
 I made a reservation earlier this week to give a seminar, but my seminar has been postponed.
user
Ok.
assistant
Can you help me with changing reservation?
user
Sure, please wait for a while.
assistant
Sure.
user
Sorry, no reservation found on your name.
assistant
Ok, No problem.
user
Thank you for approaching us.
assistant
Thank you.
user