Hello.
Hello. How can I help you today?
Please help me out in changing my existing reservation, which is done recently?
Sure, I am here to aid you with, can I know your good name to change your recent reservation?
Thank you for considering my request. My name is Michelle Gonzalez.
Please wait for a while.
  Sure, I will wait for your response.
Sorry, no reservation is found on your name in our records.
Not an issue, anyway thank you for the information.
Thank you for opting us.