Hi.
user
Hello. How may I assist you today?
assistant
I am Nancy Jones.
user
Hello Nancy.
assistant
I want to attend for an interview in MCO, can you please help me to book a flight ticket from IAD?
user
Sure, I will help you on that.
assistant
Sure, my dates are from 12/21 to 12/23.
user
Ok, please hold on a moment to check the availability of flights and I will revert you back.
assistant
Sure.
user
Sorry to inform you, there are no flights found with  your requested dates of travelling.
assistant
No problem. Thank you.
user
Thank you for approaching us, have a great day.
assistant