Hello.
user
Hello. What  help that you are looking from our agency?
assistant
I have to change my flight ticket booking due to some issues, can you please help me in that one?
user
Sure, I am here to help you in changing the ticket details. Can I have your good name please?
assistant
Thank you for considering my request and my name is Lisa Williams.
user
Ok, please hold on for a minute.
assistant
Sure.
user
Sorry to inform you that, there is no reservation found with your details in the confirmation chart list to change the details.
assistant
Ok, that's fine. Thank you for your quick help in providing the information.
user
You are most welcome. Thank you for choosing us.
assistant
Welcome.
user