Hi.
user
Hello. How can I address you?
assistant
Can you please help me to update my travelling dates in my existing reservation?
user
Sure, may I know your name for the changing process?
assistant
I am Jonathan King.
user
Please wait a while.
assistant
Sure.
user
 Sorry, we couldn't find a reservation on your name to change.
assistant
Ok, not an issue. Thank you for your information.
user
Thank you for choosing us.
assistant