Hello, Dorothy Campbell here.
user
Hello. How can I help you Dorothy?
assistant
Can you please change my recent reservation as I mistakenly booked my departure day as return day?
user
Ok, let me check with your previous reservation.
assistant
Sure.
user
Sorry Dorothy, I didn't found any reservations.
assistant
Oh! It's ok, thank you for your service.
user
Thanks for reaching us. Have a nice day.
assistant