Hello. I am Anna Hall.
user
Hello, which service you are looking from our booking agency?
assistant
Due to change in my trip, I want to change my existing reservation.
user
Ok, give me a moment to check the reservation is existing on your name are not.
assistant
Sure.
user
Anna Hall, I couldn't find any reservations found on your name in our records.
assistant
It's ok, I will check for other alternatives. Anyway, thanks for your information.
user
Ok, thank you for contacting our services.
assistant