Hello, I am Alexander Lopez.
user
Hello, how can I render you today?
assistant
Due to some emergency I need to change my existing reservation can you help me out?
user
Sure, I will help you with that.
assistant
Thank you.
user
Please wait a moment.
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