Hello,.
user
Hello, How can I help you today?
assistant
I am Richard White.
user
Ok.
assistant
I want to change my existing reservation, so can you help me with changing my reservation?
user
Sure, I will help you with that.
assistant
Thank you.
user
Please wait a while.
assistant
Sure.
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
No problem, thank you for the information.
user
Thank you for choosing us.
assistant