Hi.
user
Hello, how can I help you?
assistant
I am Stephanie Turner want to visit Washington to meet my parents, can you help me to book a ticket within the fare of 500?
user
May I know your desired travel dates please?
assistant
Sure, my travelling dates will be 04/18 and 04/20.
user
Please may I know your preferred airport code?
assistant
Yes, I want to choose my source as ORD as it is near to me and my destination is DCA.
user
Sorry to say, there is no flight on your desired travel dates.
assistant
That's ok, thank you.
user
Thank you for choosing us.
assistant