Hi.
user
Hello. How may I help you?
assistant
I am Dorothy Davis, can you help me for changing my existing reservation, because my semester exams was postponed?
user
Sure, I am here to help you. Please give me a moment to check your details.
assistant
Ok, I will wait for your reply.
user
Sorry, there is no reservation found on your name.
assistant
Oh! It's ok, no problem thank you for your services.
user
Thank you for choosing us, have a nice day.
assistant