Hello.
Hello, how can I help you?
 I have planned to book a ticket from SFO to IAD, can you assist me in booking my ticket?
Sure, can you please share your journey dates that you prefer to travel?
My preferred dates are Aug 5th and Aug 7th.
Do you require any stopovers in your journey?
I need one break between my trip.
 Would you let us know if you have any other preferences?
No. you can proceed booking.
May I know your name please?
Rebecca Hall.
Ok, please wait a minute I will get back to you with the flight details.
Ok.
             Thank you for being patient, we didn't find any flights which matches your requirement.
No problem, thank you for searching.
Thank you for reaching us, have a nice day.