Hi.
user
Hello,.
assistant
I am Frank Hall.
user
How can I help you today?
assistant
Owing an emergency want to change my reservation, so can you help  me with it please?
user
Sure, I will help you with that.
assistant
Thank you.
user
Please wait a while.
assistant
Ok, take your time.
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
That's ok. Thank you for the response.
user
Thank you for approaching us.
assistant