Hello, I am Patrick Wright.
Hello, how may I help you?
Earlier I made a reservation for my trip through an agent but, agent booked on wrong date. So, I request you to please change it to my actual date.
Sure, I am here to help you.
Thank you.
Please wait for a while, I will check and get back to you.
Ok.
Sorry, no reservation found on your given name.
No problem, thank you for the information.
Thank you for choosing us.