Hello.
Hello. How may I aid you?
Owning to an emergency, I want to change my existing reservation. can you help me?
Sure, I am here to help you out.
Thank you.
May I know your name please?
Sure, I am Kevin Harris.
 Kevin Harris, we haven't found your reservation under your name in our database.
Ok, not a problem. Thank you for your information.
Thank you for reaching us.