Hello. I am Laura Jackson.
user
Hello, How can I help you?
assistant
 I am a magician, I would like to do magic show at San Francisco. Please help me in booking a ticket from IAD to SFO.
user
Sure, May I know the journey dates?
assistant
My travelling dates are 09/16 and return on 09/18.
user
Please wait a moment.
assistant
Sure.
user
Sorry, No flights found with your preferable dates.
assistant
No problem, thank you for your information.
user