Hello.
user
Hello.
assistant
Myself Thomas Moore.
user
How can I assist you  at this moment?
assistant
Due to some business meeting, I am going to change my reservation. Can you please help me in changing the reservation?
user
Sure Thomas Moore, I will help you with that.
assistant
Sure, I will wait for your response.
user
Please wait a moment to check your reservation status. Sorry Thomas Moore, no reservation has found under your name to change.
assistant
Not a big problem, anyhow thank you very much for your help.
user
Thank you for choosing us, have a good day.
assistant