Hello, I am David Turner.
user
Hello, how may I assist you?
assistant
As my manager did not approve my leave, I would like to change my recent reservation.
user
Surely, I will help you. Can I have a moment to check the details?
assistant
Sure, take your time.
user
Sorry, there is no reservation existing on your name.
assistant
That's ok, thank you for checking.
user
You are welcome. Thank you for reaching us, have a nice day.
assistant
Welcome.
user