Hello.
user
Hello. How may I aid you?
assistant
I am Kathleen Clark. I am planning to visit my friends home from HOU to IAD. Can you help me out?
user
Sure, can I know the dates of travel?
assistant
 These are my travelling dates 07/17 to 07/19. Make sure my connection should be 0.
user
I'm sorry, there are no flights matching with your preferences.
assistant
It's ok , no problem. Thank you for your time.
user
Thank you, have a good day.
assistant
Welcome.
user