Hello.
user
 Hello, How exactly I can serve you the best today?
assistant
Myself Gary Clark.
user
Ok.
assistant
Actually I made a earlier reservation to go for a trip with my friends, but heavy work load in office I want to change my reservation. Will you help me with that?
user
Sure, I will help you with that. Please wait a moment.
assistant
Thank you for accepting my request, I will wait for you response.
user
Thank you for waiting. I have checked in reservation list to change your ticket, but could not find any reservation with your name.
assistant
Ok, not an issue. Thank you for your information.
user
Thank you for reaching us.
assistant