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