Hello.
user
Hello, how can I render you today?
assistant
I just wants to change my reservation, as I rescheduled my journey dates. So, help me in this  with the name of Anna Robinson.
user
Sure, I will help you with that.
assistant
Ok.
user
Please wait a while.
assistant
Sure.
user
Thank you for waiting.
assistant
Fine.
user
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 your kind information.
user
Thank you for reaching us.
assistant