Hello.
user
Hello, How can I help you?
assistant
I want to book a ticket from IAD to EWR as my brother wants to join in New York University.
user
Sure< May I know the price limit and travelling dates?
assistant
And my  price should be of 500. My journey starts on 06/26 and ends on 06/28.
user
Ok, Wait a minute.
assistant
Sure.
user
Thanks for waiting. Unfortunately, There is no flight available with your data.
assistant
Ok, thank you for your service.
user
Thank you.
assistant