Hi.
Hello. How may I serve you?
I heard that Staten island ferry is a sightseeing place, as it has a  Harbor.
Ok.
For this I want to book a ticket,  but due to delay in my visa I want to change my reservation. Will you help me in changing my reservation?
Sure. Can I have your good name to check your previous reservation?
I am Thomas Campbell.
Please standby.
Ok.
Thank you for waiting, there is no previous reservation available with your name.
No problem, I will go for another option. Thank you for your service.
Thank you for contacting us.