Hi, I am Raymond Brown.
Hello, how can I help you?
I have planned  celebrate my grand mother's birthday, could you please help me in booking my flight ticket?
Sure, may I know your travel details?
My origin is from NY-EWR to TX-DFW. My depart day is on 04/11 and return day is on 04/13.
OK, please wait a moment. I will check and get back to you.
OK.
Thanks for waiting. Unfortunately there is no flight found with your request.
Its OK, thanks for informing.
Thank you and have a nice day.