Hello.
user
Hello. How may I serve you today?
assistant
I am Elizabeth Lopez. I would like to change my existing reservation, due to examination schedule postponed. Can you please help me?
user
Sure, I'll help you in changing an existing reservation.
assistant
Thank you.
user
Please wait a moment I will check the reservation list.
assistant
Sure, take your own time.
user
Thank you for waiting, unfortunately there is no reservation found by your name.
assistant
That's ok, thank you for checking.
user
Thank you for availing us.
assistant