Hello.
user
Hello. How may I assist you?
assistant
Due to some urgent E commerce  meeting, I am willing to change my reservation. Can you please help me for this?
user
Sure, I am here to help you out.
assistant
Thank you very much for quick access.
user
Can you please share your name?
assistant
Myself Frank Clark.
user
Wait a moment please.
assistant
Sure, I will wait for your kind response.
user
Frank Clark, we haven't found any reservation under your name in our database.
assistant
Not a big issue, anyway thank you very much for checking the reservation status.
user
Thank you for choosing us.
assistant