Hello,.
user
Hello, how may I assist you today?
assistant
I want to change my existing reservation due to sudden change of my travelling dates. Can you help me out in changing my existing reservation?
user
Sure, I will help you in changing your reservation. Let me know your name please?
assistant
I am Justin Miller.
user
Ok, please wait for a moment.
assistant
Sure.
user
Thanks for waiting, we have not found any reservation with your name.
assistant
Ok, not a problem. Thank you for aiding me.
user
Thanks for approaching us.
assistant