Hello.
Hello, how can I assist you?
Can you help me to change my reservation which was done two days ago?
Sure, I am here to help you. May I know your name to check the reservation list?
Thank you. My name is Benjamin Smith.
      Ok, please wait a minute I will get back to you with the present status.
Sure.
Thank you for waiting, sorry no reservation found on your name.
Ok, thank you for the information.
Thank you for opting us, have a nice day.