Hello. I am David Lopez.
Hello, how may I help you?
I am planning to book a ticket from SEA to EWR.  Can you please help me out?
Sure, may I know your travel dates?
I would like to travel on July 30 and return back on Aug  01.
Do you have any specifications?
Yes, my return time should be afternoon.
Ok, please wait a minute.
Sure.
Sorry, there were no flights found on your specified time.
That's fine, thank you for your service.
Thank you for opting us.