Hello.
user
Hello. How can I assist you today?
assistant
I have to cancel my reservation due to my planned leaves got cancelled. So please help me with cancelling my reservation.
user
Sure, will you mention your name for checking the reservation status?
assistant
Thank you. I have reserved my ticket under my name Ruth Thompson.
user
Please give me a moment.
assistant
Sure, take your time.
user
Thanks for waiting. There is no reservation found under your name.
assistant
I will check my mail once again and  I will contact you again if anything not cleared. Anyway, thank you for checking.
user
Welcome, have a great day.
assistant