Hi,.
user
Hello, how may I serve you today?
assistant
I am Amanda Taylor. I made a reservation earlier this week to give a seminar but due to weather conditions I need to change the reservation dates. Can you help me in changing my reservation?
user
Sure, please wait for a while.
assistant
Sure.
user
Thank you for waiting.
assistant
Ok.
user
Sorry we couldn't find any reservation with your  name.
assistant
Ok, thank you.
user
Thank you for choosing us.
assistant