Hello, Barbara Perez here.
user
Hello. Hello how may I serve you?
assistant
I want your help in making some changes in my existing reservation, due to the busy schedule on my planned travel dates. Can you help me?
user
Sure, give me a moment I will check the reservation list.
assistant
Ok.
user
Thanks for waiting, we did not found any reservation by this name.
assistant
Oh! Maybe the reservation is not done properly.
user
Thanks for picking us.
assistant
Anyway, thank you for informing me.
user