Hi.
user
Hello, how may I assist you today?
assistant
I would like to change my flight reservation as my mother is unwell, can you please help me?
user
Sure, may I know your name for the changing process?
assistant
Thank you. I am Benjamin Roberts.
user
Thank you, please wait for a while.
assistant
Sure.
user
 Sorry, we couldn't find a reservation on your name to change.
assistant
No problem, thank you for checking.
user
Welcome, thank you for reaching us.
assistant